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SCHEDULE I - CONSOLIDATED SUMMARY OF INVESTMENTS - OTHER THAN INVESTMENTS IN RELATED PARTIES (Details) $ in Millions | Dec. 31, 2019 USD ($)
--- | ---
Summary of investments, other than investments in related parties [Line Items] |  |
Cost | $ 121,313 |
Carrying Value | 133,697 |
Trading Securities [Member] |  |
Summary of investments, other than investments in related parties [Line Items] |  |
Cost | 4,330 |
Fair Value | 4,673 |
Carrying Value | 4,673 |
Mortgage Loans On Real Estate [Member] |  |
Summary of investments, other than investments in related parties [Line Items] |  |
Cost | 16,339 |
Fair Value | 16,872 |
Carrying Value | 16,339 |
Real estate [Member] |  |
Summary of investments, other than investments in related parties [Line Items] |  |
Cost | 11 |
Carrying Value | 11 |
Policy loans [Member] |  |
Summary of investments, other than investments in related parties [Line Items] |  |
Cost | 2,477 |
Carrying Value | 2,477 |
Derivative Instruments [Member] |  |
Summary of investments, other than investments in related parties [Line Items] |  |
Cost | 755 | [1]
Fair Value | 1,911 | [1]
Carrying Value | 1,911 | [1]
Other Investments [Member] |  |
Summary of investments, other than investments in related parties [Line Items] |  |
Cost | 2,983 |
Fair Value | 2,983 |
Carrying Value | 2,983 |
Fixed Maturity AFS Securities [Member] |  |
Summary of investments, other than investments in related parties [Line Items] |  |
Cost | 94,295 | [2]
Fair Value | 105,200 | [2]
Carrying Value | 105,200 | [2]
Fixed Maturity AFS Securities [Member] | Mortgage-Backed And Asset-Backed Securities [Member] |  |
Summary of investments, other than investments in related parties [Line Items] |  |
Cost | 8,890 | [2]
Fair Value | 9,213 | [2]
Carrying Value | 9,213 | [2]
Fixed Maturity AFS Securities [Member] | Hybrid And Redeemable Preferred Securities [Member] |  |
Summary of investments, other than investments in related parties [Line Items] |  |
Cost | 497 | [2]
Fair Value | 559 | [2]
Carrying Value | 559 | [2]
Fixed Maturity AFS Securities [Member] | Bonds [Member] | U.S. government and government agencies and authorities [Member] |  |
Summary of investments, other than investments in related parties [Line Items] |  |
Cost | 384 | [2]
Fair Value | 435 | [2]
Carrying Value | 435 | [2]
Fixed Maturity AFS Securities [Member] | Bonds [Member] | Foreign governments [Member] |  |
Summary of investments, other than investments in related parties [Line Items] |  |
Cost | 329 | [2]
Fair Value | 393 | [2]
Carrying Value | 393 | [2]
Fixed Maturity AFS Securities [Member] | Bonds [Member] | State And Municipal Bonds [Member] |  |
Summary of investments, other than investments in related parties [Line Items] |  |
Cost | 4,778 | [2]
Fair Value | 5,884 | [2]
Carrying Value | 5,884 | [2]
Fixed Maturity AFS Securities [Member] | Bonds [Member] | Public utilities [Member] |  |
Summary of investments, other than investments in related parties [Line Items] |  |
Cost | 13,533 | [2]
Fair Value | 15,374 | [2]
Carrying Value | 15,374 | [2]
Fixed Maturity AFS Securities [Member] | Bonds [Member] | All other corporate bonds [Member] |  |
Summary of investments, other than investments in related parties [Line Items] |  |
Cost | 65,884 | [2]
Fair Value | 73,342 | [2]
Carrying Value | 73,342 | [2]
Equity Securities [Member] |  |
Summary of investments, other than investments in related parties [Line Items] |  |
Cost | 123 |
Fair Value | 103 |
Carrying Value | 103 |
Equity Securities [Member] | Nonredeemable preferred securities [Member] |  |
Summary of investments, other than investments in related parties [Line Items] |  |
Cost | 48 |
Fair Value | 38 |
Carrying Value | 38 |
Equity Securities [Member] | Common Stock [Member] | Public utilities [Member] |  |
Summary of investments, other than investments in related parties [Line Items] |  |
Cost | 5 |
Fair Value | 4 |
Carrying Value | 4 |
Equity Securities [Member] | Common Stock [Member] | Banks, trusts, and insurance companies [Member] |  |
Summary of investments, other than investments in related parties [Line Items] |  |
Cost | 35 |
Fair Value | 35 |
Carrying Value | 35 |
Equity Securities [Member] | Common Stock [Member] | Industrial, miscellaneous and all other [Member] |  |
Summary of investments, other than investments in related parties [Line Items] |  |
Cost | 35 |
Fair Value | 26 |
Carrying Value | 26 |
Parent Company [Member] |  |
Summary of investments, other than investments in related parties [Line Items] |  |
Derivative Liabilities | 110 |
Parent Company [Member] | Other Liabilities [Member] |  |
Summary of investments, other than investments in related parties [Line Items] |  |
Derivative Liabilities | $ 349 |
[1] | Derivative investment assets were offset by $349 million in derivative liabilities reflected in other liabilities on our Consolidated Balance Sheets.
[2] | Investments deemed to have declines in value that are other-than-temporary are written down or reserved for to reduce the carrying value to their estimated realizable value.

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