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Fair Value - Reconciliation of Level 3 Financial Instruments (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2022
Dec. 31, 2022
Dec. 31, 2021
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Beginning balance $ 22,454 $ 45,752 $ 14,840
Total realized and unrealized gains (losses) included in income   (9,969) (709)
Total realized and unrealized gains (losses) included in OCI   (621) 42
Purchases, issuances, sales and settlements, net 11,721 11,721 8,640
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net (1,301) (1,301) (359)
Transfers (Out) (21,589)   (914)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases (23,623)   (12,028)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Issuances 0   0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales (3,953)   (1,580)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements (7,949)   (1,808)
Transfer In (20,288)   (555)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Purchases 0   0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Issuances (1,722)   (1,474)
Sales 0   0
Settlements 401   891
Transfers In 0   0
Ending balance 45,582 45,582 22,454
Total gains (losses) included in earnings   (3,104) 885
Beginning balance (18,407) (11,059) (16,561)
Total realized and unrealized gains (losses) included in income   3,855 (1,263)
Total realized and unrealized gains (losses) included in OCI   0 0
Purchases, issuances, sales and settlements, net 1,321 1,321 583
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Transfers, Net 0 0 0
Transfers (Out) 0   0
Ending balance (8,525) (8,525) (18,407)
Total gains (losses) included in earnings   0 0
Fair Value, Liability, Recurring Basis, Still Held, Unrealized Gain (Loss), OCI   0 0
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss), OCI   $ (635) 42
Fair Value, Asset, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]   Gain (Loss) on Investments, Net investment income  
Fair Value, Liability, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]   Gain (Loss) on Investments, Policy and other operating expenses  
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]   Gain (Loss) on Investments, Net investment income  
FairValueRecurringBasisUnobservableInputReconciliationAssetGainLossStatementOfOtherComprehensiveIncomeExtensibleListNotDisclosedFlag   Included in OCI  
Other Liabilities [Member]      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Purchases 0    
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Issuances 0    
Sales 0    
Settlements (105)    
Transfers In 0    
Beginning balance   $ 0  
Total realized and unrealized gains (losses) included in income   (37)  
Total realized and unrealized gains (losses) included in OCI   0  
Purchases, issuances, sales and settlements, net 105 105  
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Transfers, Net 0 0  
Transfers (Out) 0    
Ending balance (142) (142)  
Total gains (losses) included in earnings   0  
Fair Value, Liability, Recurring Basis, Still Held, Unrealized Gain (Loss), OCI   0  
Reinsurance recoverable      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Beginning balance 1,991 1,991 2,100
Total realized and unrealized gains (losses) included in income   (603) (109)
Total realized and unrealized gains (losses) included in OCI   0 0
Purchases, issuances, sales and settlements, net   0 0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net   0 0
Ending balance 1,388 1,388 1,991
Total gains (losses) included in earnings   0 0
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss), OCI   0 0
Short-term Investments | Related Party      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Beginning balance   0  
Total realized and unrealized gains (losses) included in income   0  
Total realized and unrealized gains (losses) included in OCI   0  
Purchases, issuances, sales and settlements, net   53  
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net   (53)  
Ending balance 0 0  
Total gains (losses) included in earnings   0  
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss), OCI   0  
Short-term Investments | Consolidated Entity Excluding Variable Interest Entities (VIE) and Related Party      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Beginning balance 29 29 2
Total realized and unrealized gains (losses) included in income   0 0
Total realized and unrealized gains (losses) included in OCI   0 0
Purchases, issuances, sales and settlements, net 7 7 27
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net 0 0 0
Transfers (Out) 0    
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases (59)    
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Issuances 0    
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales 0    
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements (52)    
Transfer In 0    
Ending balance 36 36 29
Total gains (losses) included in earnings   0 0
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss), OCI   0 0
Mortgage loans | Related Party      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Beginning balance   1,369  
Total realized and unrealized gains (losses) included in income   (225)  
Total realized and unrealized gains (losses) included in OCI   0  
Purchases, issuances, sales and settlements, net 158 158  
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net 0 0  
Transfers (Out) 0    
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases (182)    
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Issuances 0    
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales 0    
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements (24)    
Transfer In 0    
Ending balance 1,302 1,302  
Total gains (losses) included in earnings   (225)  
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss), OCI   0  
Mortgage loans | Variable Interest Entities      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Beginning balance   2,152  
Total realized and unrealized gains (losses) included in income   (227)  
Total realized and unrealized gains (losses) included in OCI   0  
Purchases, issuances, sales and settlements, net (31) (31)  
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net 161 161  
Transfers (Out) (223)    
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases (176)    
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Issuances 0    
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales 0    
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements (207)    
Transfer In (384)    
Ending balance 2,055 2,055  
Total gains (losses) included in earnings   (226)  
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss), OCI   0  
Mortgage loans | Consolidated Entity Excluding Variable Interest Entities (VIE) and Related Party      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Beginning balance 17 21,154 19
Total realized and unrealized gains (losses) included in income   (2,761) 0
Total realized and unrealized gains (losses) included in OCI   0 0
Purchases, issuances, sales and settlements, net 9,061 9,061 (2)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net 0 0 0
Transfers (Out) 0   0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases (12,367)   0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Issuances 0   0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales (198)   0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements (3,108)   (2)
Transfer In 0   0
Ending balance 27,454 27,454 17
Total gains (losses) included in earnings   (2,747) 0
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss), OCI   0 0
Investment funds | Related Party      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Beginning balance 2,855   2,033
Total realized and unrealized gains (losses) included in income     816
Total realized and unrealized gains (losses) included in OCI     0
Purchases, issuances, sales and settlements, net 57   6
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net (2,031)   0
Transfers (Out) 2,031   0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases (91)   (6)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Issuances 0   0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales 34   0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements 0   0
Transfer In 0   0
Ending balance     2,855
Total gains (losses) included in earnings     816
Investment funds | Consolidated Entity Excluding Variable Interest Entities (VIE) and Related Party      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Beginning balance 18   17
Total realized and unrealized gains (losses) included in income     1
Total realized and unrealized gains (losses) included in OCI     0
Purchases, issuances, sales and settlements, net     0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net     0
Ending balance     18
Total gains (losses) included in earnings     1
Other investments | Related Party      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Beginning balance   0  
Total realized and unrealized gains (losses) included in income   14  
Total realized and unrealized gains (losses) included in OCI   0  
Purchases, issuances, sales and settlements, net 15 15  
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net 274 274  
Transfers (Out) 0    
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases (31)    
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Issuances 0    
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales (16)    
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements 0    
Transfer In (274)    
Ending balance 303 303  
Total gains (losses) included in earnings   14  
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss), OCI   0  
Other investments | Variable Interest Entities      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Beginning balance   0  
Total realized and unrealized gains (losses) included in income   (17)  
Total realized and unrealized gains (losses) included in OCI   0  
Purchases, issuances, sales and settlements, net 31 31  
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net 85 85  
Transfers (Out) (1,933)    
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases (33)    
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Issuances 0    
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales (2)    
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements 0    
Transfer In (2,018)    
Ending balance 99 99  
Total gains (losses) included in earnings   (24)  
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss), OCI   0  
Other investments | Consolidated Entity Excluding Variable Interest Entities (VIE) and Related Party      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Beginning balance   0  
Total realized and unrealized gains (losses) included in income   (91)  
Total realized and unrealized gains (losses) included in OCI   0  
Purchases, issuances, sales and settlements, net 36 36  
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net 496 496  
Transfers (Out) 0    
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases (48)    
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Issuances 0    
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales (12)    
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements 0    
Transfer In (496)    
Ending balance 441 441  
Total gains (losses) included in earnings   (91)  
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss), OCI   0  
Equity securities | Related Party      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Beginning balance 284 284 72
Total realized and unrealized gains (losses) included in income   (2) 8
Total realized and unrealized gains (losses) included in OCI   0 0
Purchases, issuances, sales and settlements, net (15) (15) 204
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net 12 12 0
Transfers (Out) (113)   0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases (195)   (213)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Issuances 0   0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales (119)   0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements (91)   (9)
Transfer In (125)   0
Ending balance 279 279 284
Total gains (losses) included in earnings   0 8
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss), OCI   0 0
Equity securities | Variable Interest Entities      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Purchases, issuances, sales and settlements, net 0    
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net 0    
Transfers (Out) (15)    
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases 0    
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Issuances 0    
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales 0    
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements 0    
Transfer In (15)    
Equity securities | Consolidated Entity Excluding Variable Interest Entities (VIE) and Related Party      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Beginning balance 429 429 11
Total realized and unrealized gains (losses) included in income   26 16
Total realized and unrealized gains (losses) included in OCI   0 0
Purchases, issuances, sales and settlements, net (4) (4) 402
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net (359) (359) 0
Transfers (Out) 400   0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases 0   (402)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Issuances 0   0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales 4   0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements 0   0
Transfer In (41)   0
Ending balance 92 92 429
Total gains (losses) included in earnings   22 16
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss), OCI   0 0
Trading securities | Related Party      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Beginning balance 1,771 1,771 1,525
Total realized and unrealized gains (losses) included in income   3 20
Total realized and unrealized gains (losses) included in OCI   0 0
Purchases, issuances, sales and settlements, net (1,084) (1,084) 236
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net 188 188 (10)
Transfers (Out) (1,260)   (10)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases (43)   (422)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Issuances 0   0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales (1,081)   (117)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements (46)   (69)
Transfer In (1,448)   0
Ending balance 878 878 1,771
Total gains (losses) included in earnings   1 40
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss), OCI   0 0
Trading securities | Variable Interest Entities      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Beginning balance   0  
Total realized and unrealized gains (losses) included in income   49  
Total realized and unrealized gains (losses) included in OCI   0  
Purchases, issuances, sales and settlements, net 530 530  
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net 43 43  
Transfers (Out) (387)    
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases (531)    
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Issuances 0    
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales (1)    
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements 0    
Transfer In (430)    
Ending balance 622 622  
Total gains (losses) included in earnings   11  
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss), OCI   0  
Trading securities | Consolidated Entity Excluding Variable Interest Entities (VIE) and Related Party      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Beginning balance 69 69 86
Total realized and unrealized gains (losses) included in income   (9) (11)
Total realized and unrealized gains (losses) included in OCI   0 0
Purchases, issuances, sales and settlements, net (10) (10) 1
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net 3 3 (7)
Transfers (Out) 53   22
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases (8)   (5)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Issuances 0   0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales 9   4
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements 9   0
Transfer In (56)   (15)
Ending balance 53 53 69
Total gains (losses) included in earnings   (5) (5)
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss), OCI   0 0
Investment funds | Related Party      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Beginning balance   2,855  
Total realized and unrealized gains (losses) included in income   78  
Total realized and unrealized gains (losses) included in OCI   0  
Purchases, issuances, sales and settlements, net   57  
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net   (2,031)  
Ending balance 959 959  
Total gains (losses) included in earnings   119  
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss), OCI   0 0
Investment funds | Variable Interest Entities      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Beginning balance 1,297 1,297 0
Total realized and unrealized gains (losses) included in income   72 9
Total realized and unrealized gains (losses) included in OCI   0 0
Purchases, issuances, sales and settlements, net 1,862 1,862 1,179
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net (760) (760) 109
Transfers (Out) (12,310)   0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases (2,014)   (1,316)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Issuances 0   0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales (152)   (137)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements 0   0
Transfer In (11,550)   (109)
Ending balance 2,471 2,471 1,297
Total gains (losses) included in earnings   58 9
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss), OCI   0 0
Investment funds | Consolidated Entity Excluding Variable Interest Entities (VIE) and Related Party      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Beginning balance   18  
Total realized and unrealized gains (losses) included in income   1  
Total realized and unrealized gains (losses) included in OCI   0  
Purchases, issuances, sales and settlements, net 0 0  
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net (19) (19)  
Transfers (Out) (19)    
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases 0    
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Issuances 0    
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales 0    
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements 0    
Transfer In 0    
Ending balance 0 0  
Total gains (losses) included in earnings   0  
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss), OCI   0 0
Short-term Investments | Related Party      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Purchases, issuances, sales and settlements, net 53    
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net 53    
Transfers (Out) 53    
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases (53)    
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Issuances 0    
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales 0    
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements 0    
Transfer In 0    
Short-term Investments | Consolidated Entity Excluding Variable Interest Entities (VIE) and Related Party      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Purchases, issuances, sales and settlements, net     27
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net     0
Transfers (Out)     0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases     (30)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Issuances     0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales     (3)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements     0
Transfer In     0
Embedded derivatives | Funds withheld at interest | Related Party      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Beginning balance 578 0 862
Total realized and unrealized gains (losses) included in income   (1,425) (284)
Total realized and unrealized gains (losses) included in OCI   0 0
Purchases, issuances, sales and settlements, net   0 0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net   0 0
Ending balance (1,425) (1,425) 578
Total gains (losses) included in earnings   0 0
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss), OCI   0 0
Embedded derivatives | Funds withheld at interest | Consolidated Entity Excluding Variable Interest Entities (VIE) and Related Party      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Beginning balance 782 0 1,944
Total realized and unrealized gains (losses) included in income   (4,847) (1,162)
Total realized and unrealized gains (losses) included in OCI   0 0
Purchases, issuances, sales and settlements, net   0 0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net   0 0
Ending balance (4,847) (4,847) 782
Total gains (losses) included in earnings   0 0
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss), OCI   0 0
RMBS | Foreign currency forwards | Consolidated Entity Excluding Variable Interest Entities (VIE) and Related Party      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Beginning balance   0  
Total realized and unrealized gains (losses) included in income   0  
Total realized and unrealized gains (losses) included in OCI   3  
Purchases, issuances, sales and settlements, net 295 295  
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net (66) (66)  
Transfers (Out) 66    
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases (296)    
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Issuances 0    
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales 0    
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements 1    
Transfer In 0    
Ending balance 232 232  
Total gains (losses) included in earnings   0  
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss), OCI   4  
ABS | Foreign currency forwards | Related Party      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Beginning balance 6,445 6,445 4,109
Total realized and unrealized gains (losses) included in income   16 (6)
Total realized and unrealized gains (losses) included in OCI   (256) (44)
Purchases, issuances, sales and settlements, net (715) (715) 2,386
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net 52 52 0
Transfers (Out) (1,864)   0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases (2,889)   (3,679)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Issuances 0   0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales (94)   (212)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements (3,510)   (1,081)
Transfer In (1,916)   0
Ending balance 5,542 5,542 6,445
Total gains (losses) included in earnings   (11) 0
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss), OCI   (259) (44)
ABS | Foreign currency forwards | Consolidated Entity Excluding Variable Interest Entities (VIE) and Related Party      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Beginning balance 3,619 3,619 800
Total realized and unrealized gains (losses) included in income   1 (17)
Total realized and unrealized gains (losses) included in OCI   (183) 45
Purchases, issuances, sales and settlements, net 788 788 2,958
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net 642 642 (167)
Transfers (Out) (447)   (327)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases (3,306)   (4,455)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Issuances 0   0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales (1,791)   (1,001)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements (727)   (496)
Transfer In (1,089)   (160)
Ending balance 4,867 4,867 3,619
Total gains (losses) included in earnings   0 0
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss), OCI   (216) 45
CLO | Foreign currency forwards | Related Party      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Beginning balance 202 202  
Total realized and unrealized gains (losses) included in income   0  
Total realized and unrealized gains (losses) included in OCI   (29)  
Purchases, issuances, sales and settlements, net 130 130 (202)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net 0 0 0
Transfers (Out) 0   0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases 130   202
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Issuances 0   0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales 0   0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements 0   0
Transfer In 0   0
Ending balance 303 303 202
Total gains (losses) included in earnings   0  
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss), OCI   (29) 0
CLO | Foreign currency forwards | Consolidated Entity Excluding Variable Interest Entities (VIE) and Related Party      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Beginning balance 14 14 208
Total realized and unrealized gains (losses) included in income   (2) 0
Total realized and unrealized gains (losses) included in OCI   0 1
Purchases, issuances, sales and settlements, net (9) (9) (37)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net (3) (3) (158)
Transfers (Out) (3)   (158)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases (3)   0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Issuances 0   0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales 0   0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements (12)   (37)
Transfer In 0   0
Ending balance 0 0 14
Total gains (losses) included in earnings   0 0
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss), OCI   0 1
CLO | AFS securities | Related Party      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Beginning balance     0
Total realized and unrealized gains (losses) included in income     0
Total realized and unrealized gains (losses) included in OCI     0
Purchases, issuances, sales and settlements, net     202
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net     0
Total gains (losses) included in earnings     0
Corporate | Foreign currency forwards | Related Party      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Beginning balance 670 670 195
Total realized and unrealized gains (losses) included in income   (3) 2
Total realized and unrealized gains (losses) included in OCI   (16) 7
Purchases, issuances, sales and settlements, net 202 202 661
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net (41) (41) (195)
Transfers (Out) (94)   (195)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases (483)   (661)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Issuances 0   0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales (263)   0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements (18)   0
Transfer In (53)   0
Ending balance 812 812 670
Total gains (losses) included in earnings   0 0
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss), OCI   (16) 7
Corporate | Foreign currency forwards | Consolidated Entity Excluding Variable Interest Entities (VIE) and Related Party      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Beginning balance 1,339 1,339 778
Total realized and unrealized gains (losses) included in income   (16) 6
Total realized and unrealized gains (losses) included in OCI   (123) 27
Purchases, issuances, sales and settlements, net 364 364 428
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net 101 101 100
Transfers (Out) (292)   (128)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases (685)   (636)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Issuances 0   0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales (177)   (96)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements (144)   (112)
Transfer In (393)   (228)
Ending balance 1,665 1,665 1,339
Total gains (losses) included in earnings   0 0
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss), OCI   (119) 27
CMBS | Foreign currency forwards | Consolidated Entity Excluding Variable Interest Entities (VIE) and Related Party      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Beginning balance 43 43 43
Total realized and unrealized gains (losses) included in income   0 2
Total realized and unrealized gains (losses) included in OCI   (17) 6
Purchases, issuances, sales and settlements, net 0 0 (11)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net (26) (26) 3
Transfers (Out) (26)   (40)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases 0   0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Issuances 0   0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales 0   (10)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements 0   (1)
Transfer In 0   (43)
Ending balance 0 0 43
Total gains (losses) included in earnings   0 0
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss), OCI   0 6
Foreign governments | Foreign currency forwards | Consolidated Entity Excluding Variable Interest Entities (VIE) and Related Party      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Beginning balance 2 2 2
Total realized and unrealized gains (losses) included in income   (1) 0
Total realized and unrealized gains (losses) included in OCI   0 0
Purchases, issuances, sales and settlements, net   0 0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net   0 0
Transfers (Out)     0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases     (1)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Issuances     0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales     0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements     1
Transfer In     0
Ending balance 1 1 2
Total gains (losses) included in earnings   0 0
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss), OCI   0 0
US state, municipal and political subdivisions | Foreign currency forwards | Consolidated Entity Excluding Variable Interest Entities (VIE) and Related Party      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Beginning balance 0   34
Total realized and unrealized gains (losses) included in income     0
Total realized and unrealized gains (losses) included in OCI     0
Purchases, issuances, sales and settlements, net     0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net     (34)
Transfers (Out)     (34)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases     0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Issuances     0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales     0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements     0
Transfer In     0
Ending balance     0
Total gains (losses) included in earnings     0
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss), OCI     0
Derivative liabilities      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Beginning balance (3) (3) (4)
Total realized and unrealized gains (losses) included in income   2 1
Total realized and unrealized gains (losses) included in OCI   0 0
Purchases, issuances, sales and settlements, net   0 0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Transfers, Net   0 0
Ending balance (1) (1) (3)
Total gains (losses) included in earnings   0 0
Fair Value, Liability, Recurring Basis, Still Held, Unrealized Gain (Loss), OCI   0 0
Interest sensitive contract liabilities | Embedded derivatives      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Purchases 0   0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Issuances (1,722)   (1,474)
Sales 0   0
Settlements 506   891
Transfers In 0   0
Beginning balance (14,907) (7,559) (12,873)
Total realized and unrealized gains (losses) included in income   2,934 (1,451)
Total realized and unrealized gains (losses) included in OCI   0 0
Purchases, issuances, sales and settlements, net 1,216 1,216 583
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Transfers, Net 0 0 0
Transfers (Out) 0   0
Ending balance (5,841) (5,841) (14,907)
Total gains (losses) included in earnings   0 0
Fair Value, Liability, Recurring Basis, Still Held, Unrealized Gain (Loss), OCI   0 0
Universal Life | Interest sensitive contract liabilities      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Beginning balance (1,235) (1,235) (1,308)
Total realized and unrealized gains (losses) included in income   406 73
Total realized and unrealized gains (losses) included in OCI   0 0
Purchases, issuances, sales and settlements, net   0 0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Transfers, Net   0 0
Ending balance (829) (829) (1,235)
Total gains (losses) included in earnings   0 0
Fair Value, Liability, Recurring Basis, Still Held, Unrealized Gain (Loss), OCI   0 0
AmerUs Closed Block | Future policy benefits      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Beginning balance (1,520) (1,520) (1,600)
Total realized and unrealized gains (losses) included in income   356 80
Total realized and unrealized gains (losses) included in OCI   0 0
Purchases, issuances, sales and settlements, net   0 0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Transfers, Net   0 0
Ending balance (1,164) (1,164) (1,520)
Total gains (losses) included in earnings   0 0
Fair Value, Liability, Recurring Basis, Still Held, Unrealized Gain (Loss), OCI   0 0
ILICO Closed Block and life benefits | Future policy benefits      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Beginning balance (742) (742) (776)
Total realized and unrealized gains (losses) included in income   194 34
Total realized and unrealized gains (losses) included in OCI   0 0
Purchases, issuances, sales and settlements, net   0 0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Transfers, Net   0 0
Ending balance $ (548) (548) (742)
Total gains (losses) included in earnings   0 0
Fair Value, Liability, Recurring Basis, Still Held, Unrealized Gain (Loss), OCI   $ 0 $ 0