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Variable Annuity and Insurance Guarantees - Liability Rollforward (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
GMDB and GGU      
Changes in additional liabilities for variable annuity and insurance guarantees      
Beginning Balance $ 24 $ 16 $ 19
Incurred claims 17 15 2
Paid claims (5) (7) (5)
Ending Balance 36 24 16
GMIB      
Changes in additional liabilities for variable annuity and insurance guarantees      
Beginning Balance 6 7 8
Incurred claims     (1)
Paid claims (1) (1)  
Ending Balance 5 6 7
GMWB      
Changes in additional liabilities (contra liabilities) for variable annuity and insurance guarantees      
Beginning balance 3,049 1,462 875
Incurred claims [1] (713) 1,587 587
Ending balance 2,336 3,049 1,462
GMAB      
Changes in additional liabilities (contra liabilities) for variable annuity and insurance guarantees      
Beginning balance 1 (39) (19)
Incurred claims [1] (24) 40 (20)
Ending balance (23) 1 (39)
UL      
Changes in additional liabilities for variable annuity and insurance guarantees      
Beginning Balance 916 758 659
Incurred claims 140 209 141
Paid claims (36) (51) (42)
Ending Balance $ 1,020 $ 916 $ 758
[1] The incurred claims for GMWB and GMAB include the change in the fair value of the liabilities (contra liabilities) less paid claims.