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Derivatives - Derivative Balance Sheet Classification (Details) - USD ($) $ in Millions | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Derivatives, Fair Value [Line Items] |  |
Derivative, Notional Amount | $ 11,224 | $ 12,129
Fair Value | (42) | (61)
Asset Derivatives | 17 | 33
Liability Derivatives | (59) | (94)
Fixed maturities, available-for-sale |  |
Derivatives, Fair Value [Line Items] |  |
Derivative, Notional Amount | 413 | 269
Fair Value | 0 | 0
Asset Derivatives | 0 | 0
Liability Derivatives | 0 | 0
Other investments |  |
Derivatives, Fair Value [Line Items] |  |
Derivative, Notional Amount | 1,452 | 9,585
Fair Value | 7 | 23
Asset Derivatives | 10 | 25
Liability Derivatives | (3) | (2)
Other liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Derivative, Notional Amount | 9,359 | 2,275
Fair Value | (49) | (84)
Asset Derivatives | 7 | 8
Liability Derivatives | (56) | (92)
Cash Flow Hedging |  |
Derivatives, Fair Value [Line Items] |  |
Derivative, Notional Amount | 2,777 | 2,626
Fair Value | 6 | (13)
Asset Derivatives | 11 | 3
Liability Derivatives | (5) | (16)
Designated as Hedging Instrument | Interest rate swaps |  |
Derivatives, Fair Value [Line Items] |  |
Derivative, Notional Amount | 2,340 | 2,340
Fair Value | 0 | 0
Asset Derivatives | 0 | 0
Liability Derivatives | 0 | 0
Designated as Hedging Instrument | Foreign currency swaps |  |
Derivatives, Fair Value [Line Items] |  |
Derivative, Notional Amount | 437 | 286
Fair Value | 6 | (13)
Asset Derivatives | 11 | 3
Liability Derivatives | (5) | (16)
Not Designated as Hedging Instrument |  |
Derivatives, Fair Value [Line Items] |  |
Derivative, Notional Amount | 8,447 | 9,503
Fair Value | (48) | (48)
Asset Derivatives | 6 | 30
Liability Derivatives | (54) | (78)
Not Designated as Hedging Instrument | Interest rate swaps |  |
Derivatives, Fair Value [Line Items] |  |
Derivative, Notional Amount | 7,200 | 7,600
Not Designated as Hedging Instrument | Interest rate swaps and futures |  |
Derivatives, Fair Value [Line Items] |  |
Derivative, Notional Amount | 7,567 | 8,335
Fair Value | (46) | (69)
Asset Derivatives | 3 | 4
Liability Derivatives | (49) | (73)
Not Designated as Hedging Instrument | Foreign currency swaps and forwards |  |
Derivatives, Fair Value [Line Items] |  |
Derivative, Notional Amount | 558 | 269
Fair Value | 0 | 0
Asset Derivatives | 0 | 0
Liability Derivatives | 0 | 0
Not Designated as Hedging Instrument | Credit derivatives that purchase credit protection |  |
Derivatives, Fair Value [Line Items] |  |
Derivative, Notional Amount | 112 | 6
Fair Value | (2) | 0
Asset Derivatives | 0 | 0
Liability Derivatives | (2) | 0
Not Designated as Hedging Instrument | Credit derivatives that assume credit risk |  |
Derivatives, Fair Value [Line Items] |  |
Derivative, Notional Amount | 0 | 675
Fair Value | 0 | 21
Asset Derivatives | 0 | 21
Liability Derivatives | 0 | 0
Not Designated as Hedging Instrument | Credit derivatives in offsetting positions |  |
Derivatives, Fair Value [Line Items] |  |
Derivative, Notional Amount | 210 | 218
Fair Value | 0 | 0
Asset Derivatives | 3 | 5
Liability Derivatives | $ (3) | $ (5)

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