XML 52 R39.htm IDEA: XBRL DOCUMENT
v3.5.0.2

Fair Value Measurements Level 4 Fair Value by Hierarchy (Details) - USD ($) | 3 Months Ended | 9 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | ---
Sep. 30, 2016 | Sep. 30, 2015 | Sep. 30, 2016 | Sep. 30, 2015 | Jun. 30, 2016 | Dec. 31, 2015 | Jun. 30, 2015 | Dec. 31, 2014
Fair Value Measurement [Domain] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Alternative Investments, Fair Value Disclosure | $ 0 |  | $ 0 |  |  | $ 622,000,000 |  |
Separate Account Assets | 116,163,000,000 |  | 116,163,000,000 |  |  | 118,174,000,000 |  |
Fair Value Measurement [Domain] | Level 1 [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Alternative Investments, Fair Value Disclosure | 0 |  | 0 |  |  | 0 |  |
Separate Account Assets | 74,870,000,000 |  | 74,870,000,000 |  |  | 78,110,000,000 |  |
Fair Value Measurement [Domain] | Level 2 [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Alternative Investments, Fair Value Disclosure | 0 |  | 0 |  |  | 0 |  |
Separate Account Assets | 40,028,000,000 |  | 40,028,000,000 |  |  | 38,700,000,000 |  |
Fair Value Measurement [Domain] | Level 3 [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Alternative Investments, Fair Value Disclosure | 0 |  | 0 |  |  | 0 |  |
Separate Account Assets | 325,000,000 |  | 325,000,000 |  |  | 140,000,000 |  |
Available-for-sale Securities, Debt Securities | 60,225,000,000 |  | 60,225,000,000 |  |  | 59,196,000,000 |  |
Trading Securities, Equity | 11,000,000 |  | 11,000,000 |  |  | 11,000,000 |  |
Available-for-sale Securities, Equity Securities | 875,000,000 |  | 875,000,000 |  |  | 1,121,000,000 |  |
Short-term investments | 2,219,000,000 |  | 2,219,000,000 |  |  | 1,843,000,000 |  |
Alternative Investments, Fair Value Disclosure | 2,482,000,000 |  | 2,482,000,000 |  |  | 2,874,000,000 |  |
Reinsurance recoverable for U.S. GMWB | 23,126,000,000 |  | 23,126,000,000 |  |  | 23,189,000,000 |  |
Separate Account Assets | 118,648,000,000 |  | 118,648,000,000 |  |  | 120,123,000,000 |  |
Assets, Fair Value Disclosure | 180,260,000,000 |  | 180,260,000,000 |  |  | 181,633,000,000 |  |
Marketable Securities, Fixed Maturities | 360,000,000 |  | 360,000,000 |  |  | 503,000,000 |  |
Liabilities, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Total liabilities accounted for at fair value on a recurring basis | (1,411,000,000) |  | (1,411,000,000) |  |  | (1,086,000,000) |  |
Derivative Liability, Fair Value, Amount Offset Against Collateral | 44,000,000 |  | 44,000,000 |  |  | 23,000,000 |  |
HIG_FairValueAssetsLevel2ToLevel1TransfersAmounts | 0 | $ 0 | 0 | $ 0 |  |  |  |
Credit derivative [Member] | Other Investments [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Derivative Assets (Liabilities), at Fair Value, Net | 8,000,000 |  | 8,000,000 |  |  | 21,000,000 |  |
Credit derivative [Member] | Other liabilities [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Derivative Assets (Liabilities), at Fair Value, Net | (10,000,000) |  | (10,000,000) |  |  |  |  |
Equity Contract [Member] | Other liabilities [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Derivative Assets (Liabilities), at Fair Value, Net | 30,000,000 |  | 30,000,000 |  |  |  |  |
Foreign Exchange Contract [Member] | Other Investments [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Derivative Assets (Liabilities), at Fair Value, Net | 2,000,000 |  | 2,000,000 |  |  | 15,000,000 |  |
Foreign Exchange Contract [Member] | Other liabilities [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Derivative Assets (Liabilities), at Fair Value, Net | (257,000,000) |  | (257,000,000) |  |  |  |  |
Interest Rate Contract [Member] | Other Investments [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Derivative Assets (Liabilities), at Fair Value, Net | 104,000,000 |  | 104,000,000 |  |  | (227,000,000) |  |
Interest Rate Contract [Member] | Other liabilities [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Derivative Assets (Liabilities), at Fair Value, Net | (961,000,000) |  | (961,000,000) |  |  |  |  |
Other Contract [Member] | Other Investments [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Derivative Assets (Liabilities), at Fair Value, Net | 2,000,000 |  | 2,000,000 |  |  | 7,000,000 |  |
Derivative Financial Instruments, Assets [Member] | Other Investments [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Derivative Assets (Liabilities), at Fair Value, Net | 278,000,000 |  | 278,000,000 |  |  | 1,000,000 |  |
Derivative Financial Instruments, Liabilities [Member] | Other liabilities [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Derivative Assets (Liabilities), at Fair Value, Net | (1,055,000,000) |  | (1,055,000,000) |  |  | (798,000,000) |  |
ABS [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Available-for-sale Securities, Debt Securities | 2,685,000,000 |  | 2,685,000,000 |  |  | 2,499,000,000 |  |
Collateralized Debt Obligations [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Available-for-sale Securities, Debt Securities | 2,573,000,000 |  | 2,573,000,000 |  |  | 3,038,000,000 |  |
CMBS [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Available-for-sale Securities, Debt Securities | 5,268,000,000 |  | 5,268,000,000 |  |  | 4,717,000,000 |  |
Corporate [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Available-for-sale Securities, Debt Securities | 26,904,000,000 |  | 26,904,000,000 |  |  | 26,802,000,000 |  |
Foreign Government Debt Securities [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Available-for-sale Securities, Debt Securities | 1,186,000,000 |  | 1,186,000,000 |  |  | 1,308,000,000 |  |
Municipal [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Available-for-sale Securities, Debt Securities | 12,594,000,000 |  | 12,594,000,000 |  |  | 12,121,000,000 |  |
RMBS [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Available-for-sale Securities, Debt Securities | 4,936,000,000 |  | 4,936,000,000 |  |  | 4,046,000,000 |  |
U.S. Treasuries [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Available-for-sale Securities, Debt Securities | 4,079,000,000 |  | 4,079,000,000 |  |  | 4,665,000,000 |  |
Liabilities, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
HIG_FairValueAssetsLevel1ToLevel2TransfersAmount | 508,000,000 | 471 | 1,316,000,000 | 995 |  |  |  |
Level 1 [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Available-for-sale Securities, Debt Securities | 348,000,000 |  | 348,000,000 |  |  | 740,000,000 |  |
Trading Securities, Equity | 11,000,000 |  | 11,000,000 |  |  | 11,000,000 |  |
Available-for-sale Securities, Equity Securities | 645,000,000 |  | 645,000,000 |  |  | 874,000,000 |  |
Short-term investments | 494,000,000 |  | 494,000,000 |  |  | 333,000,000 |  |
Assets, Fair Value Disclosure | 76,368,000,000 |  | 76,368,000,000 |  |  | 80,070,000,000 |  |
Marketable Securities, Fixed Maturities | 0 |  | 0 |  |  | 2,000,000 |  |
Liabilities, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Total liabilities accounted for at fair value on a recurring basis | 0 |  | 0 |  |  | 0 |  |
Level 1 [Member] | Credit derivative [Member] | Other Investments [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Derivative Assets (Liabilities), at Fair Value, Net | 0 |  | 0 |  |  | 0 |  |
Level 1 [Member] | Credit derivative [Member] | Other liabilities [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Derivative Assets (Liabilities), at Fair Value, Net | 0 |  | 0 |  |  |  |  |
Level 1 [Member] | Equity Contract [Member] | Other liabilities [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Derivative Assets (Liabilities), at Fair Value, Net | 0 |  | 0 |  |  |  |  |
Level 1 [Member] | Foreign Exchange Contract [Member] | Other Investments [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Derivative Assets (Liabilities), at Fair Value, Net | 0 |  | 0 |  |  | 0 |  |
Level 1 [Member] | Foreign Exchange Contract [Member] | Other liabilities [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Derivative Assets (Liabilities), at Fair Value, Net | 0 |  | 0 |  |  |  |  |
Level 1 [Member] | Interest Rate Contract [Member] | Other Investments [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Derivative Assets (Liabilities), at Fair Value, Net | 0 |  | 0 |  |  | 0 |  |
Level 1 [Member] | Interest Rate Contract [Member] | Other liabilities [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Derivative Assets (Liabilities), at Fair Value, Net | 0 |  | 0 |  |  |  |  |
Level 1 [Member] | Other Contract [Member] | Other Investments [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Derivative Assets (Liabilities), at Fair Value, Net | 0 |  | 0 |  |  | 0 |  |
Level 1 [Member] | Derivative Financial Instruments, Liabilities [Member] | Other liabilities [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Derivative Assets (Liabilities), at Fair Value, Net | 0 |  | 0 |  |  | 0 |  |
Level 1 [Member] | ABS [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Available-for-sale Securities, Debt Securities | 0 |  | 0 |  |  | 0 |  |
Level 1 [Member] | Collateralized Debt Obligations [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Available-for-sale Securities, Debt Securities | 0 |  | 0 |  |  | 0 |  |
Level 1 [Member] | CMBS [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Available-for-sale Securities, Debt Securities | 0 |  | 0 |  |  | 0 |  |
Level 1 [Member] | Corporate [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Available-for-sale Securities, Debt Securities | 0 |  | 0 |  |  | 0 |  |
Level 1 [Member] | Foreign Government Debt Securities [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Available-for-sale Securities, Debt Securities | 0 |  | 0 |  |  | 0 |  |
Level 1 [Member] | Municipal [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Available-for-sale Securities, Debt Securities | 0 |  | 0 |  |  | 0 |  |
Level 1 [Member] | RMBS [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Available-for-sale Securities, Debt Securities | 0 |  | 0 |  |  | 0 |  |
Level 1 [Member] | U.S. Treasuries [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Available-for-sale Securities, Debt Securities | 348,000,000 |  | 348,000,000 |  |  | 740,000,000 |  |
Level 2 [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Available-for-sale Securities, Debt Securities | 55,951,000,000 |  | 55,951,000,000 |  |  | 55,143,000,000 |  |
Trading Securities, Equity | 0 |  | 0 |  |  | 0 |  |
Available-for-sale Securities, Equity Securities | 130,000,000 |  | 130,000,000 |  |  | 154,000,000 |  |
Short-term investments | 1,725,000,000 |  | 1,725,000,000 |  |  | 1,510,000,000 |  |
Assets, Fair Value Disclosure | 98,315,000,000 |  | 98,315,000,000 |  |  | 95,907,000,000 |  |
Marketable Securities, Fixed Maturities | 351,000,000 |  | 351,000,000 |  |  | 485,000,000 |  |
Liabilities, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Total liabilities accounted for at fair value on a recurring basis | (1,145,000,000) |  | (1,145,000,000) |  |  | (900,000,000) |  |
Level 2 [Member] | Credit derivative [Member] | Other Investments [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Derivative Assets (Liabilities), at Fair Value, Net | 8,000,000 |  | 8,000,000 |  |  | 21,000,000 |  |
Level 2 [Member] | Credit derivative [Member] | Other liabilities [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Derivative Assets (Liabilities), at Fair Value, Net | (10,000,000) |  | (10,000,000) |  |  |  |  |
Level 2 [Member] | Equity Contract [Member] | Other liabilities [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Derivative Assets (Liabilities), at Fair Value, Net | 30,000,000 |  | 30,000,000 |  |  |  |  |
Level 2 [Member] | Foreign Exchange Contract [Member] | Other Investments [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Derivative Assets (Liabilities), at Fair Value, Net | 2,000,000 |  | 2,000,000 |  |  | 15,000,000 |  |
Level 2 [Member] | Foreign Exchange Contract [Member] | Other liabilities [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Derivative Assets (Liabilities), at Fair Value, Net | (257,000,000) |  | (257,000,000) |  |  |  |  |
Level 2 [Member] | Interest Rate Contract [Member] | Other Investments [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Derivative Assets (Liabilities), at Fair Value, Net | 104,000,000 |  | 104,000,000 |  |  | (227,000,000) |  |
Level 2 [Member] | Interest Rate Contract [Member] | Other liabilities [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Derivative Assets (Liabilities), at Fair Value, Net | (929,000,000) |  | (929,000,000) |  |  |  |  |
Level 2 [Member] | Other Contract [Member] | Other Investments [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Derivative Assets (Liabilities), at Fair Value, Net | 0 |  | 0 |  |  | 0 |  |
Level 2 [Member] | Derivative Financial Instruments, Assets [Member] | Other Investments [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Derivative Assets (Liabilities), at Fair Value, Net | 99,000,000 |  | 99,000,000 |  |  | (164,000,000) |  |
Level 2 [Member] | Derivative Financial Instruments, Liabilities [Member] | Other liabilities [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Derivative Assets (Liabilities), at Fair Value, Net | (1,145,000,000) |  | (1,145,000,000) |  |  | (900,000,000) |  |
Level 2 [Member] | ABS [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Available-for-sale Securities, Debt Securities | 2,654,000,000 |  | 2,654,000,000 |  |  | 2,462,000,000 |  |
Level 2 [Member] | Collateralized Debt Obligations [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Available-for-sale Securities, Debt Securities | 2,104,000,000 |  | 2,104,000,000 |  |  | 2,497,000,000 |  |
Level 2 [Member] | CMBS [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Available-for-sale Securities, Debt Securities | 5,191,000,000 |  | 5,191,000,000 |  |  | 4,567,000,000 |  |
Level 2 [Member] | Corporate [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Available-for-sale Securities, Debt Securities | 25,810,000,000 |  | 25,810,000,000 |  |  | 25,948,000,000 |  |
Level 2 [Member] | Foreign Government Debt Securities [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Available-for-sale Securities, Debt Securities | 1,112,000,000 |  | 1,112,000,000 |  |  | 1,248,000,000 |  |
Level 2 [Member] | Municipal [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Available-for-sale Securities, Debt Securities | 12,468,000,000 |  | 12,468,000,000 |  |  | 12,072,000,000 |  |
Level 2 [Member] | RMBS [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Available-for-sale Securities, Debt Securities | 2,881,000,000 |  | 2,881,000,000 |  |  | 2,424,000,000 |  |
Level 2 [Member] | U.S. Treasuries [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Available-for-sale Securities, Debt Securities | 3,731,000,000 |  | 3,731,000,000 |  |  | 3,925,000,000 |  |
Level 3 [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Available-for-sale Securities, Debt Securities | 3,926,000,000 |  | 3,926,000,000 |  |  | 3,313,000,000 |  |
Trading Securities, Equity | 0 |  | 0 |  |  | 0 |  |
Available-for-sale Securities, Equity Securities | 100,000,000 |  | 100,000,000 |  |  | 93,000,000 |  |
Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value | 379,000,000 |  | 379,000,000 |  | $ (440,000,000) | (288,000,000) |  |
Short-term investments | 0 |  | 0 |  |  | 0 |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value | 325,000,000 | 164,000,000 | 325,000,000 | 164,000,000 | 171,000,000 | 139,000,000 | $ 285,000,000 | $ 112,000,000
Assets, Fair Value Disclosure | 4,637,000,000 |  | 4,637,000,000 |  |  | 3,810,000,000 |  |
Marketable Securities, Fixed Maturities | 9,000,000 |  | 9,000,000 |  |  | 16,000,000 |  |
Liabilities, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Total liabilities accounted for at fair value on a recurring basis | (266,000,000) |  | (266,000,000) |  |  | (186,000,000) |  |
Level 3 [Member] | Credit derivative [Member] | Other Investments [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Derivative Assets (Liabilities), at Fair Value, Net | 0 |  | 0 |  |  | 0 |  |
Level 3 [Member] | Credit derivative [Member] | Other liabilities [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Derivative Assets (Liabilities), at Fair Value, Net | 0 |  | 0 |  |  |  |  |
Level 3 [Member] | Equity Contract [Member] | Other liabilities [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Derivative Assets (Liabilities), at Fair Value, Net | 0 |  | 0 |  |  |  |  |
Level 3 [Member] | Foreign Exchange Contract [Member] | Other Investments [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Derivative Assets (Liabilities), at Fair Value, Net | 0 |  | 0 |  |  | 0 |  |
Level 3 [Member] | Foreign Exchange Contract [Member] | Other liabilities [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Derivative Assets (Liabilities), at Fair Value, Net | 0 |  | 0 |  |  |  |  |
Level 3 [Member] | Interest Rate Contract [Member] | Other Investments [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Derivative Assets (Liabilities), at Fair Value, Net | 0 |  | 0 |  |  | 0 |  |
Level 3 [Member] | Interest Rate Contract [Member] | Other liabilities [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Derivative Assets (Liabilities), at Fair Value, Net | (32,000,000) |  | (32,000,000) |  |  |  |  |
Level 3 [Member] | Other Contract [Member] | Other Investments [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Derivative Assets (Liabilities), at Fair Value, Net | 2,000,000 |  | 2,000,000 |  |  | 7,000,000 |  |
Level 3 [Member] | Derivative Financial Instruments, Assets [Member] | Other Investments [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Derivative Assets (Liabilities), at Fair Value, Net | 179,000,000 |  | 179,000,000 |  |  | 165,000,000 |  |
Level 3 [Member] | Derivative Financial Instruments, Liabilities [Member] | Other liabilities [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Derivative Assets (Liabilities), at Fair Value, Net | 90,000,000 |  | 90,000,000 |  |  | 102,000,000 |  |
Level 3 [Member] | ABS [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Available-for-sale Securities, Debt Securities | 31,000,000 |  | 31,000,000 |  |  | 37,000,000 |  |
Level 3 [Member] | Collateralized Debt Obligations [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Available-for-sale Securities, Debt Securities | 469,000,000 |  | 469,000,000 |  |  | 541,000,000 |  |
Level 3 [Member] | CMBS [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Available-for-sale Securities, Debt Securities | 77,000,000 |  | 77,000,000 |  |  | 150,000,000 |  |
Level 3 [Member] | Corporate [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Available-for-sale Securities, Debt Securities | 1,094,000,000 |  | 1,094,000,000 |  |  | 854,000,000 |  |
Level 3 [Member] | Foreign Government Debt Securities [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Available-for-sale Securities, Debt Securities | 74,000,000 |  | 74,000,000 |  |  | 60,000,000 |  |
Level 3 [Member] | Municipal [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Available-for-sale Securities, Debt Securities | 126,000,000 |  | 126,000,000 |  |  | 49,000,000 |  |
Level 3 [Member] | RMBS [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Available-for-sale Securities, Debt Securities | 2,055,000,000 |  | 2,055,000,000 |  |  | 1,622,000,000 |  |
Level 3 [Member] | U.S. Treasuries [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Available-for-sale Securities, Debt Securities | 0 |  | 0 |  |  | 0 |  |
Fair Value, Measurements, Recurring [Member] | Credit derivative [Member] | Other liabilities [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Derivative Assets (Liabilities), at Fair Value, Net |  |  |  |  |  | (16,000,000) |  |
Fair Value, Measurements, Recurring [Member] | Equity Contract [Member] | Other liabilities [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Derivative Assets (Liabilities), at Fair Value, Net |  |  |  |  |  | 41,000,000 |  |
Fair Value, Measurements, Recurring [Member] | Foreign Exchange Contract [Member] | Other liabilities [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Derivative Assets (Liabilities), at Fair Value, Net |  |  |  |  |  | (374,000,000) |  |
Fair Value, Measurements, Recurring [Member] | Interest Rate Contract [Member] | Other liabilities [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Derivative Assets (Liabilities), at Fair Value, Net |  |  |  |  |  | (569,000,000) |  |
Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | Credit derivative [Member] | Other liabilities [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Derivative Assets (Liabilities), at Fair Value, Net |  |  |  |  |  | 0 |  |
Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | Equity Contract [Member] | Other liabilities [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Derivative Assets (Liabilities), at Fair Value, Net |  |  |  |  |  | 0 |  |
Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | Foreign Exchange Contract [Member] | Other liabilities [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Derivative Assets (Liabilities), at Fair Value, Net |  |  |  |  |  | 0 |  |
Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | Interest Rate Contract [Member] | Other liabilities [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Derivative Assets (Liabilities), at Fair Value, Net |  |  |  |  |  | 0 |  |
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Credit derivative [Member] | Other liabilities [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Derivative Assets (Liabilities), at Fair Value, Net |  |  |  |  |  | (16,000,000) |  |
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Equity Contract [Member] | Other liabilities [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Derivative Assets (Liabilities), at Fair Value, Net |  |  |  |  |  | 41,000,000 |  |
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Foreign Exchange Contract [Member] | Other liabilities [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Derivative Assets (Liabilities), at Fair Value, Net |  |  |  |  |  | (374,000,000) |  |
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Interest Rate Contract [Member] | Other liabilities [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Derivative Assets (Liabilities), at Fair Value, Net |  |  |  |  |  | (547,000,000) |  |
Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | Other policyholder funds and benefits payable [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value |  | (291,000,000) |  | (291,000,000) |  |  | (138,000,000) | (165,000,000)
Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | Credit derivative [Member] | Other liabilities [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Derivative Assets (Liabilities), at Fair Value, Net |  |  |  |  |  | 0 |  |
Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | Equity Contract [Member] | Other liabilities [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Derivative Assets (Liabilities), at Fair Value, Net |  |  |  |  |  | 0 |  |
Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | Foreign Exchange Contract [Member] | Other liabilities [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Derivative Assets (Liabilities), at Fair Value, Net |  |  |  |  |  | 0 |  |
Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | Interest Rate Contract [Member] | Other liabilities [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Derivative Assets (Liabilities), at Fair Value, Net |  |  |  |  |  | (22,000,000) |  |
Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | Embedded Derivative Financial Instruments [Member] | Other liabilities [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value |  | 0 |  | 0 |  |  | (3,000,000) | (3,000,000)
Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | CMBS [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Available-for-sale Securities, Debt Securities | 53,000,000 |  | 53,000,000 |  |  | 122,000,000 |  |
Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | RMBS [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Available-for-sale Securities, Debt Securities | 2,055,000,000 |  | 2,055,000,000 |  |  | 1,622,000,000 |  |
Liability [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Obligations, Fair Value Disclosure | 379,000,000 |  | 379,000,000 |  |  | 288,000,000 |  |
Liability [Member] | Level 1 [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Obligations, Fair Value Disclosure | 0 |  | 0 |  |  | 0 |  |
Liability [Member] | Level 2 [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Obligations, Fair Value Disclosure | 0 |  | 0 |  |  | 0 |  |
Liability [Member] | Level 3 [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Obligations, Fair Value Disclosure | 379,000,000 |  | 379,000,000 |  |  | 288,000,000 |  |
Obligations [Member] | Level 3 [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Obligations, Fair Value Disclosure | 23,000,000 |  | 23,000,000 |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value | 23,000,000 |  | 23,000,000 |  | 0 | 0 |  |
Equity Linked Notes [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Obligations, Fair Value Disclosure | 31,000,000 |  | 31,000,000 |  |  | 26,000,000 |  |
Equity Linked Notes [Member] | Level 1 [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Obligations, Fair Value Disclosure | 0 |  | 0 |  |  | 0 |  |
Equity Linked Notes [Member] | Level 2 [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Obligations, Fair Value Disclosure | 0 |  | 0 |  |  | 0 |  |
Equity Linked Notes [Member] | Level 3 [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Obligations, Fair Value Disclosure |  |  |  |  |  | 26,000,000 |  |
Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value | 31,000,000 |  | 31,000,000 |  | (28,000,000) | (26,000,000) |  |
Equity Linked Notes [Member] | Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | Other policyholder funds and benefits payable [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value |  | (21,000,000) |  | (21,000,000) |  |  | (26,000,000) | (26,000,000)
US GMWB Hedging Instruments [Member] | Other Investments [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Derivative Assets (Liabilities), at Fair Value, Net | 66,000,000 |  | 66,000,000 |  |  | 111,000,000 |  |
US GMWB Hedging Instruments [Member] | Other liabilities [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Derivative Assets (Liabilities), at Fair Value, Net | 103,000,000 |  | 103,000,000 |  |  | 47,000,000 |  |
US GMWB Hedging Instruments [Member] | Level 1 [Member] | Other Investments [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Derivative Assets (Liabilities), at Fair Value, Net | 0 |  | 0 |  |  | 0 |  |
US GMWB Hedging Instruments [Member] | Level 1 [Member] | Other liabilities [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Derivative Assets (Liabilities), at Fair Value, Net | 0 |  | 0 |  |  | 0 |  |
US GMWB Hedging Instruments [Member] | Level 2 [Member] | Other Investments [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Derivative Assets (Liabilities), at Fair Value, Net | (15,000,000) |  | (15,000,000) |  |  | 27,000,000 |  |
US GMWB Hedging Instruments [Member] | Level 2 [Member] | Other liabilities [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Derivative Assets (Liabilities), at Fair Value, Net | 53,000,000 |  | 53,000,000 |  |  | (4,000,000) |  |
US GMWB Hedging Instruments [Member] | Level 3 [Member] | Other Investments [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Derivative Assets (Liabilities), at Fair Value, Net | 81,000,000 |  | 81,000,000 |  |  | 84,000,000 |  |
US GMWB Hedging Instruments [Member] | Level 3 [Member] | Other liabilities [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Derivative Assets (Liabilities), at Fair Value, Net | 50,000,000 |  | 50,000,000 |  |  | 51,000,000 |  |
US GMWB Hedging Instruments [Member] | Level 3 [Member] | Other Contract [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Derivative Assets (Liabilities), at Fair Value, Net | 142,000,000 |  | 142,000,000 |  |  | 131,000,000 |  |
GMWB Reinsurance [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Reinsurance recoverable for U.S. GMWB | 98,000,000 |  | 98,000,000 |  |  | 83,000,000 |  |
GMWB Reinsurance [Member] | Level 1 [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Reinsurance recoverable for U.S. GMWB | 0 |  | 0 |  |  | 0 |  |
GMWB Reinsurance [Member] | Level 2 [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Reinsurance recoverable for U.S. GMWB | 0 |  | 0 |  |  | 0 |  |
GMWB Reinsurance [Member] | Level 3 [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Reinsurance recoverable for U.S. GMWB |  |  |  |  |  | 83,000,000 |  |
Coinsurance and Modified Coinsurance Reinsurance Contracts [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Reinsurance recoverable for U.S. GMWB | 31,000,000 |  | 31,000,000 |  |  | 79,000,000 |  |
Coinsurance and Modified Coinsurance Reinsurance Contracts [Member] | Level 1 [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Reinsurance recoverable for U.S. GMWB | 0 |  | 0 |  |  | 0 |  |
Coinsurance and Modified Coinsurance Reinsurance Contracts [Member] | Level 2 [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Reinsurance recoverable for U.S. GMWB | 31,000,000 |  | 31,000,000 |  |  | 79,000,000 |  |
Coinsurance and Modified Coinsurance Reinsurance Contracts [Member] | Level 3 [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Reinsurance recoverable for U.S. GMWB | 0 |  | 0 |  |  | 0 |  |
Macro Hedge Program [Member] | Other Investments [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Derivative Assets (Liabilities), at Fair Value, Net | 96,000,000 |  | 96,000,000 |  |  | 74,000,000 |  |
Macro Hedge Program [Member] | Other liabilities [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Derivative Assets (Liabilities), at Fair Value, Net | 40,000,000 |  | 40,000,000 |  |  | 73,000,000 |  |
Macro Hedge Program [Member] | Level 1 [Member] | Other Investments [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Derivative Assets (Liabilities), at Fair Value, Net | 0 |  | 0 |  |  | 0 |  |
Macro Hedge Program [Member] | Level 1 [Member] | Other liabilities [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Derivative Assets (Liabilities), at Fair Value, Net | 0 |  | 0 |  |  | 0 |  |
Macro Hedge Program [Member] | Level 2 [Member] | Other Investments [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Derivative Assets (Liabilities), at Fair Value, Net | 0 |  | 0 |  |  | 0 |  |
Macro Hedge Program [Member] | Level 2 [Member] | Other liabilities [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Derivative Assets (Liabilities), at Fair Value, Net | (32,000,000) |  | (32,000,000) |  |  | 0 |  |
Macro Hedge Program [Member] | Level 3 [Member] | Other Investments [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Derivative Assets (Liabilities), at Fair Value, Net | 96,000,000 |  | 96,000,000 |  |  | 74,000,000 |  |
Macro Hedge Program [Member] | Level 3 [Member] | Other liabilities [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Derivative Assets (Liabilities), at Fair Value, Net | 72,000,000 |  | 72,000,000 |  |  | 73,000,000 |  |
Guaranteed Minimum Withdrawal Benefit [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Obligations, Fair Value Disclosure | 348,000,000 |  | 348,000,000 |  |  | 262,000,000 |  |
Guaranteed Minimum Withdrawal Benefit [Member] | Level 1 [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Obligations, Fair Value Disclosure | 0 |  | 0 |  |  | 0 |  |
Guaranteed Minimum Withdrawal Benefit [Member] | Level 2 [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Obligations, Fair Value Disclosure | 0 |  | 0 |  |  | 0 |  |
Guaranteed Minimum Withdrawal Benefit [Member] | Level 3 [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Obligations, Fair Value Disclosure |  |  |  |  |  | 262,000,000 |  |
Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value | 348,000,000 |  | 348,000,000 |  | $ (412,000,000) | (262,000,000) |  |
Guaranteed Minimum Withdrawal Benefit [Member] | Level 3 [Member] | Other policyholder funds and benefits payable [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value |  | $ (270,000,000) |  | $ (270,000,000) |  |  | $ (112,000,000) | $ (139,000,000)
Estimate of Fair Value Measurement [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Separate Account Assets | 900,000,000 |  | 900,000,000 |  |  | 1,200,000,000 |  |
Portion at Other than Fair Value Measurement [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Separate Account Assets | $ 2,500,000,000 |  | $ 2,500,000,000 |  |  | $ 1,800,000,000 |  |
Hedge Funds [Member] | Separate Accounts [Member] |  |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |  |  |
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share, Redemption Restriction, Percentage | 39.00% |  | 39.00% |  |  | 28.00% |  |
Private Equity Funds [Member] | Separate Accounts [Member] |  |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |  |  |
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share, Redemption Restriction, Percentage | 19.00% |  | 19.00% |  |  | 4.00% |  |
Reinsurance Recoverable [Member] | Level 3 [Member] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |  |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value | $ 98,000,000 |  | $ 98,000,000 |  |  | $ 83,000,000 |  |

X
- Definition HIG_FairValueAssetsLevel1ToLevel2TransfersAmount + References No definition available. + Details
Name: | hig_HIG_FairValueAssetsLevel1ToLevel2TransfersAmount
Namespace Prefix: | hig_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition HIG_FairValueAssetsLevel2ToLevel1TransfersAmounts + References No definition available. + Details
Name: | hig_HIG_FairValueAssetsLevel2ToLevel1TransfersAmounts
Namespace Prefix: | hig_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Fair value of investments in certain entities that calculate net asset value per share, including, but not limited to, by unit, membership interest, or other ownership interest. Investments include, but are not limited to, investments in certain hedge funds, venture capital funds, private equity funds, real estate partnerships or funds. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 6A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=36462937&loc=SL6742756-110258 + Details
Name: | us-gaap_AlternativeInvestmentsFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 + Details
Name: | us-gaap_AssetsFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_AssetsFairValueDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of debt securities categorized neither as held-to-maturity nor trading. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 25 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=51813488&loc=d3e22054-111558 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=49167202&loc=d3e26610-111562 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (aa) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27161-111563 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 2 -Subparagraph (b)-(g) -URI http://asc.fasb.org/extlink&oid=6957658&loc=d3e62557-112803 + Details
Name: | us-gaap_AvailableForSaleSecuritiesDebtSecurities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of equity securities categorized neither as held-to-maturity nor as trading. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 25 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=51813488&loc=d3e22054-111558 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=49167202&loc=d3e26610-111562 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6957658&loc=d3e62557-112803 + Details
Name: | us-gaap_AvailableForSaleSecuritiesEquitySecurities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fair values as of the balance sheet date of the net amount of all assets and liabilities resulting from contracts that meet the criteria of being accounted for as derivative instruments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41228-113958 + Details
Name: | us-gaap_DerivativeAssetsLiabilitiesAtFairValueNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fair value, after effects of master netting arrangements, of financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset offset against the right to receive collateral. Includes liabilities not subject to a master netting arrangement and not elected to be offset. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 8 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=56946850&loc=d3e41678-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=51825145&loc=SL20226016-175313 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 + Details
Name: | us-gaap_DerivativeFairValueOfDerivativeLiabilityAmountOffsetAgainstCollateral
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The percentage of the total value of investments that cannot be redeemed because of a redemption restriction as of the statement of financial position date. + References No definition available. + Details
Name: | us-gaap_FairValueInvestmentsEntitiesThatCalculateNetAssetValuePerShareRedemptionRestrictionPercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Fair value of obligations measured on a recurring basis. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a),(b) -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 + Details
Name: | us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisObligations
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Fair value of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 + Details
Name: | us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fair value of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 + Details
Name: | us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Fair value of financial and nonfinancial obligations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 + Details
Name: | us-gaap_LiabilitiesFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_LiabilitiesFairValueDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition For an unclassified balance sheet, this item represents investments in debt securities having predetermined or determinable maturity dates. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.1(a)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
Name: | us-gaap_MarketableSecuritiesFixedMaturities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Other investments not otherwise specified in the taxonomy that will be realized in a short period of time, usually less than one year or the normal operating cycle, whichever is longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.5) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.8) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.1(g)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
Name: | us-gaap_OtherShortTermInvestments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount after valuation allowance recoverable including premium paid under reinsurance contracts. Examples include, but are not limited to, settled and unsettled claims, incurred but not reported losses, loss adjustment expense, premium paid, policy benefits and policy reserves. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 20 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6480758&loc=d3e6824-158387 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.(a),6) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
Name: | us-gaap_ReinsuranceRecoverables
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The fair value of the assets held by the Entity for the benefit of separate account policyholders. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 80 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6484091&loc=d3e19268-158472 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -Glossary Separate Account -URI http://asc.fasb.org/extlink&oid=6524887 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 10 -Article 9 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 11 -Article 7 + Details
Name: | us-gaap_SeparateAccountAssets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fair value of investments in trading equity securities and other forms of trading securities that provide ownership interests. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=49167202&loc=d3e26626-111562 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=49167202&loc=d3e26610-111562 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.4) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.(a),1(b)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.2) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Trading Securities -URI http://asc.fasb.org/extlink&oid=6526789 + Details
Name: | us-gaap_TradingSecuritiesEquity
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_FairValueByMeasurementBasisAxis=us-gaap_FairValueDisclosureItemAmountsDomain
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel3Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_CreditRiskContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BalanceSheetLocationAxis=us-gaap_OtherInvestmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BalanceSheetLocationAxis=us-gaap_OtherLiabilitiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_EquityContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_ForeignExchangeContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_InterestRateContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_OtherContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_DerivativeFinancialInstrumentsAssetsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis=us-gaap_AssetBackedSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis=us-gaap_CollateralizedDebtObligationsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis=us-gaap_CommercialMortgageBackedSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis=us-gaap_CorporateDebtSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis=us-gaap_ForeignGovernmentDebtSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis=us-gaap_USStatesAndPoliticalSubdivisionsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis=us-gaap_ResidentialMortgageBackedSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis=us-gaap_USTreasurySecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsRecurringMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BalanceSheetLocationAxis=hig_OtherPolicyholderFundsAndBenefitsPayableMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_EmbeddedDerivativeFinancialInstrumentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByLiabilityClassAxis=us-gaap_LiabilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByLiabilityClassAxis=us-gaap_ObligationsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByLiabilityClassAxis=hig_EquityLinkedNotesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeByNatureAxis=hig_UsGmwbHedgingInstrumentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeByNatureAxis=hig_GmwbReinsuranceMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeByNatureAxis=hig_CoinsuranceAndModifiedCoinsuranceReinsuranceContractsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeByNatureAxis=hig_MacroHedgeProgramMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_GuaranteedInsuranceContractTypeOfBenefitAxis=us-gaap_GuaranteedMinimumWithdrawalBenefitMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByMeasurementBasisAxis=us-gaap_EstimateOfFairValueFairValueDisclosureMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByMeasurementBasisAxis=us-gaap_PortionAtOtherThanFairValueFairValueDisclosureMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentTypeAxis=us-gaap_HedgeFundsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BalanceSheetLocationAxis=hig_SeparateAccountsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentTypeAxis=us-gaap_PrivateEquityFundsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=us-gaap_ReinsuranceRecoverableMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |