XML 178 R121.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Debt - Additional Information (Details) - USD ($) |  |  | 1 Months Ended | 9 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Mar. 29, 2018 | Jul. 29, 2016 | Apr. 30, 2017 | Sep. 30, 2018 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016 | Jul. 19, 2018 | Jun. 15, 2018 | Mar. 15, 2018
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Loss on extinguishment of debt |  |  |  | $ (6,000,000) | $ (6,000,000) | $ 0 | $ 0 |  |  |
Term of registration statement |  | three |  |  |  |  |  |  |  |
Letters of Credit, Maximum Borrowing Capacity |  |  |  |  | 100,000,000 |  |  |  |  |
Line of Credit Facility, Covenant Terms - Monetary | $ 9,000,000,000 |  |  |  |  |  |  |  |  |
Line of Credit Facility, Remaining Borrowing Capacity |  |  |  |  | 0 |  |  |  |  |
Letters of Credit Outstanding, Amount |  |  |  |  | 3,000,000 |  |  |  |  |
Commercial paper outstanding |  |  |  |  | 0 |  |  |  |  |
Federal Home Loan Bank, Advances, Affordable Housing Program, Principal Outstanding |  |  |  |  | 0 |  |  |  |  |
Hartford Fire Insurance Company [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Amount of Advances |  |  |  |  | 1,100,000,000 |  |  |  |  |
Hartford Life and Accident Insurance Company [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Amount of Advances |  |  |  |  | 600,000,000 |  |  |  |  |
Commercial Paper |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Credit facility |  |  |  |  | 750,000,000 |  |  | $ 750,000,000 |  |
Revolving Credit Facility |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Borrowings outstanding under revolving credit facility |  |  |  |  | 750,000,000 |  |  |  |  |
Line of Credit Facility, Covenant Terms - Percent |  |  |  | 35.00% |  |  |  |  |  |
Scenario, Adjustment [Member] | Commercial Paper |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Credit facility |  |  |  |  |  |  |  | $ 1,000,000,000 |  |
Scenario, Adjustment [Member] | Revolving Credit Facility |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Credit facility |  |  |  |  | 1,000,000,000 |  |  |  |  |
Previously Reported [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Letters of Credit, Maximum Borrowing Capacity |  |  |  |  | 250,000,000 |  |  |  |  |
Line of Credit Facility, Covenant Terms - Monetary |  |  |  |  | $ 13,500,000,000 |  |  |  |  |
Junior Subordinated Debentures |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Interest deferral period |  |  |  |  | 10 years |  |  |  |  |
Redemption price |  |  |  |  | 100.00% |  |  |  |  |
6.3% Notes, due 2018 |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Interest rate |  |  |  |  | 6.30% |  |  |  |  |
6.0% Notes, due 2019 |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Interest rate |  |  |  |  | 6.00% |  |  |  |  |
5.5% Notes, due 2020 |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Interest rate |  |  |  |  | 5.50% |  |  |  |  |
5.125% Notes, due 2022 |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Interest rate |  |  |  |  | 5.125% |  |  |  |  |
5.95% Notes, due 2036 |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Interest rate |  |  |  |  | 5.95% |  |  |  |  |
6.625% Notes, due 2040 |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Interest rate |  |  |  |  | 6.625% |  |  |  |  |
6.1% Notes, due 2041 |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Interest rate |  |  |  |  | 6.10% | 6.10% |  |  |  |
6.625% Notes, due 2042 |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Interest rate |  |  |  |  | 6.625% |  |  |  |  |
4.3% Notes, due 2043 |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Interest rate |  |  |  |  | 4.30% | 4.30% |  |  |  |
4.4% Notes, due 2048 |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Interest rate |  |  |  |  | 4.40% |  |  |  |  | 4.40%
7.875% Notes, due 2042 |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Interest rate |  |  |  |  | 7.875% | 7.875% |  |  |  |
Debt Instrument, Face Amount |  |  |  |  | $ 600,000,000 |  |  |  |  |
3 month Libor 2.125% Notes, due 2067 [1] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  |  |  |  | $ 500,000,000 |  |  |  |  |
3 month Libor 2.125% Notes, due 2067 [1] | LIBOR |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Variable interest rate |  |  | 2.125% |  | 2.125% |  |  |  |  |
Derivative, Fixed Interest Rate |  |  | 4.39% |  |  |  |  |  |  |
8.125% Notes, due 2068 |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Interest rate |  |  |  |  | 8.125% |  |  |  | 8.125% |
Debt Instrument, Face Amount |  |  |  |  |  |  |  |  | $ 500,000,000 |
Senior Note Six Point Three Due in Two Thousand Eighteen [Member] | Senior Notes |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Interest rate |  |  |  |  |  |  |  |  |  | 6.30%
Debt repaid |  |  |  |  |  |  |  |  |  | $ 320,000,000

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