v3.26.1
Fair Value of Financial Instruments - Schedule of Changes to Fair Value of Financial Instruments Level 3 (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Fixed maturity securities available-for-sale:        
Balance at Beginning of Period $ 15,218 $ 12,647    
Balance at End of Period 16,018 13,451 $ 16,018 $ 13,451
Liabilities        
Balance at Beginning of Period 7,411 6,016    
Liabilities, Total (Losses) Gains Included in Earnings     250 145
Liabilities, Total (Losses) Gains Included in AOCI       0
Liabilities, Purchases     558 584
Liabilities, Sales     0 0
Liabilities, Settlements     (285) (224)
Liabilities, Net transfer In (Out) of Level 3     0 0
Balance at End of Period 8,248 6,510 8,248 6,510
Level 3        
Fixed maturity securities available-for-sale:        
Balance at Beginning of Period     14,530 11,832
Balance at End of Period 16,018 13,451 16,018 13,451
Liabilities        
Balance at Beginning of Period     7,526 5,843
Balance at End of Period 8,248 6,510 8,248 6,510
Indexed annuities/IUL embedded derivatives, included in Contractholder funds        
Liabilities        
Balance at Beginning of Period 6,380 5,316 6,542 5,220
Liabilities, Total (Losses) Gains Included in Earnings 537 202 253 135
Liabilities, Total (Losses) Gains Included in AOCI 0 0   0
Liabilities, Purchases 302 328 558 584
Liabilities, Sales 0 0 0 0
Liabilities, Settlements (139) (119) (273) (212)
Liabilities, Net transfer In (Out) of Level 3 0 0 0 0
Balance at End of Period 7,080 5,727 7,080 5,727
Change in Unrealized Included in OCI 0 0 $ 0 $ 0
Fair Value, Liability, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]     Recognized gains and losses, net Recognized gains and losses, net
Foreign currency swaps, included in Accounts payable and accrued liabilities        
Liabilities        
Balance at Beginning of Period 2 1   $ 0
Liabilities, Total (Losses) Gains Included in Earnings 2 4   5
Liabilities, Total (Losses) Gains Included in AOCI 0 0   0
Liabilities, Purchases 0 0   0
Liabilities, Sales 0 0   0
Liabilities, Settlements 0 0   0
Liabilities, Net transfer In (Out) of Level 3 0 0   0
Balance at End of Period 4 5 $ 4 5
Change in Unrealized Included in OCI 0 0   0
Contingent consideration        
Liabilities        
Balance at Beginning of Period 61 64 72 74
Liabilities, Total (Losses) Gains Included in Earnings 13 3 2 5
Liabilities, Total (Losses) Gains Included in AOCI 0 0   0
Liabilities, Purchases 0 0 0 0
Liabilities, Sales 0 0 0 0
Liabilities, Settlements (12) 0 (12) (12)
Liabilities, Net transfer In (Out) of Level 3 0 0 0 0
Balance at End of Period 62 67 62 67
Change in Unrealized Included in OCI 0 0 0 0
Foreign currency swaps        
Liabilities        
Balance at Beginning of Period     9  
Liabilities, Total (Losses) Gains Included in Earnings     (5)  
Liabilities, Purchases     0  
Liabilities, Sales     0  
Liabilities, Settlements     0  
Liabilities, Net transfer In (Out) of Level 3     0  
Balance at End of Period 4   4  
Change in Unrealized Included in OCI     0  
Asset-backed securities        
Fixed maturity securities available-for-sale:        
Balance at Beginning of Period 10,281 8,848 10,094 8,143
Assets, Total (Losses) Gains Included in Earnings 3 (4) 14 (3)
Assets, Total (Losses) Gains Included in AOCI (36) 27 (81) 30
Assets, Purchases 549 694 1,145 1,723
Assets, Sales (37) (55) (121) (198)
Assets, Settlements (317) (214) (655) (399)
Assets, Net transfer In (Out) of Level 3 52 65 99 65
Balance at End of Period 10,495 9,361 10,495 9,361
Change in Unrealized Included in OCI (36) 27 (78) 29
Corporates        
Fixed maturity securities available-for-sale:        
Balance at Beginning of Period 3,382 3,006 3,145 2,957
Assets, Total (Losses) Gains Included in Earnings 10 (3) 10 (16)
Assets, Total (Losses) Gains Included in AOCI 4 6 (38) 41
Assets, Purchases 725 367 1,035 719
Assets, Sales (209) (14) (224) (328)
Assets, Settlements (165) (194) (179) (205)
Assets, Net transfer In (Out) of Level 3 0 (3) (2) (3)
Balance at End of Period 3,747 3,165 3,747 3,165
Change in Unrealized Included in OCI 5 7 (36) 40
Hybrids        
Fixed maturity securities available-for-sale:        
Balance at Beginning of Period 14 6 15 0
Assets, Total (Losses) Gains Included in Earnings 0 0 0 0
Assets, Total (Losses) Gains Included in AOCI 0 (1) (1) (1)
Assets, Purchases 0 0 0 6
Assets, Sales 0 0 0 0
Assets, Settlements 0 0 0 0
Assets, Net transfer In (Out) of Level 3 0 0 0 0
Balance at End of Period 14 5 14 5
Change in Unrealized Included in OCI 0 0 0 0
Municipals        
Fixed maturity securities available-for-sale:        
Balance at Beginning of Period 3 4 3 0
Assets, Total (Losses) Gains Included in Earnings 0 0 0 0
Assets, Total (Losses) Gains Included in AOCI 0 0 0 0
Assets, Purchases 0 0 0 4
Assets, Sales 0 0 0 0
Assets, Settlements 0 (1) 0 (1)
Assets, Net transfer In (Out) of Level 3 0 0 0 0
Balance at End of Period 3 3 3 3
Change in Unrealized Included in OCI 0 0 0 0
Residential mortgage-backed securities        
Fixed maturity securities available-for-sale:        
Balance at Beginning of Period 3 3 3 3
Assets, Total (Losses) Gains Included in Earnings 0 0 0 0
Assets, Total (Losses) Gains Included in AOCI 0 0 0 0
Assets, Purchases 0 2 0 2
Assets, Sales 0 0 0 0
Assets, Settlements (3) 0 (3) 0
Assets, Net transfer In (Out) of Level 3 0 0 0 0
Balance at End of Period 0 5 0 5
Change in Unrealized Included in OCI 0 0 0 0
Foreign Governments        
Fixed maturity securities available-for-sale:        
Balance at Beginning of Period 23 23 23 4
Assets, Total (Losses) Gains Included in Earnings 0 0 0 0
Assets, Total (Losses) Gains Included in AOCI 0 0 0 0
Assets, Purchases 0 0 0 19
Assets, Sales 0 0 0 0
Assets, Settlements 0 0 0 0
Assets, Net transfer In (Out) of Level 3 0 0 0 0
Balance at End of Period 23 23 23 23
Change in Unrealized Included in OCI 0 0 0 0
Preferred equity securities        
Fixed maturity securities available-for-sale:        
Balance at Beginning of Period 8 8 8 8
Assets, Total (Losses) Gains Included in Earnings 0 0 0 (1)
Assets, Total (Losses) Gains Included in AOCI 0 0 0 1
Assets, Purchases 0 0 0 0
Assets, Sales 0 0 0 0
Assets, Settlements (7) 0 (7) 0
Assets, Net transfer In (Out) of Level 3 0 0 0 0
Balance at End of Period 1 8 1 8
Change in Unrealized Included in OCI 0 0 0 0
Common equity securities        
Fixed maturity securities available-for-sale:        
Balance at Beginning of Period 22 10    
Assets, Total (Losses) Gains Included in Earnings 0    
Assets, Total (Losses) Gains Included in AOCI 0 0    
Assets, Purchases 0 5    
Assets, Sales 0 0    
Assets, Settlements 0 0    
Assets, Net transfer In (Out) of Level 3 (9) 0    
Balance at End of Period 13 15 13 15
Change in Unrealized Included in OCI 0 0    
Foreign currency swaps, included in Accounts payable and accrued liabilities        
Fixed maturity securities available-for-sale:        
Balance at Beginning of Period 7 1    
Assets, Total (Losses) Gains Included in Earnings 1 (2)    
Assets, Total (Losses) Gains Included in AOCI 0 0    
Assets, Purchases 0 1    
Assets, Sales 0 0    
Assets, Settlements 0 0    
Assets, Net transfer In (Out) of Level 3 0 0    
Balance at End of Period 8 0 8 0
Change in Unrealized Included in OCI 0 0    
Investments in unconsolidated affiliates        
Fixed maturity securities available-for-sale:        
Balance at Beginning of Period 260 272 270 272
Assets, Total (Losses) Gains Included in Earnings 7 0 (3) 0
Assets, Total (Losses) Gains Included in AOCI 0 0 0 0
Assets, Purchases 0 0 0 0
Assets, Sales 0 0 0 0
Assets, Settlements 0 0 0 0
Assets, Net transfer In (Out) of Level 3 0 0 0 0
Balance at End of Period 267 272 267 272
Change in Unrealized Included in OCI 0 0 0 0
Short term investments        
Fixed maturity securities available-for-sale:        
Balance at Beginning of Period 74 40 74 37
Assets, Total (Losses) Gains Included in Earnings 0 0 0 0
Assets, Total (Losses) Gains Included in AOCI 0 0 0 0
Assets, Purchases 7 3 7 6
Assets, Sales 0 0 0 0
Assets, Settlements (5) (38) (5) (38)
Assets, Net transfer In (Out) of Level 3 0 0 0 0
Balance at End of Period 76 5 76 5
Change in Unrealized Included in OCI 0 0 0 0
Available-for-sale embedded derivative        
Fixed maturity securities available-for-sale:        
Balance at Beginning of Period 39 32 41 32
Assets, Total (Losses) Gains Included in Earnings 24 0 24 0
Assets, Total (Losses) Gains Included in AOCI (19) 4 (21) 4
Assets, Purchases 0 0 0 0
Assets, Sales 0 0 0 0
Assets, Settlements (44) 0 (44) 0
Assets, Net transfer In (Out) of Level 3 0 0 0 0
Balance at End of Period 0 36 0 36
Change in Unrealized Included in OCI 0 4 (2) 4
Indexed annuities/IUL ceded embedded derivatives        
Fixed maturity securities available-for-sale:        
Balance at Beginning of Period 630 129 399 98
Assets, Total (Losses) Gains Included in Earnings 45 9 21 4
Assets, Total (Losses) Gains Included in AOCI 0 0 0 0
Assets, Purchases 163 42 420 78
Assets, Sales 0 0 0 0
Assets, Settlements (7) (1) (9) (1)
Assets, Net transfer In (Out) of Level 3 0 0 0 0
Balance at End of Period 831 179 831 179
Change in Unrealized Included in OCI 0 0 0 0
Other assets        
Fixed maturity securities available-for-sale:        
Balance at Beginning of Period   67    
Assets, Total (Losses) Gains Included in Earnings   2    
Assets, Total (Losses) Gains Included in AOCI   0    
Assets, Purchases   71    
Assets, Sales   0    
Assets, Settlements   0    
Assets, Net transfer In (Out) of Level 3   0    
Balance at End of Period   140   140
Change in Unrealized Included in OCI   0    
Loan receivable        
Fixed maturity securities available-for-sale:        
Balance at Beginning of Period 24 11 24 11
Assets, Total (Losses) Gains Included in Earnings 0 0 0 0
Assets, Total (Losses) Gains Included in AOCI 0 0 0 0
Assets, Purchases 12 7 12 7
Assets, Sales 0 0 0 0
Assets, Settlements (36) 0 (36) 0
Assets, Net transfer In (Out) of Level 3 0 0 0 0
Balance at End of Period 0 18 0 18
Change in Unrealized Included in OCI 0 0 0 0
MSRs        
Fixed maturity securities available-for-sale:        
Balance at Beginning of Period 140   129 65
Assets, Total (Losses) Gains Included in Earnings (2)   (6) 1
Assets, Total (Losses) Gains Included in AOCI 0   0 0
Assets, Purchases 38   53 74
Assets, Sales 0   0 0
Assets, Settlements 0   0 0
Assets, Net transfer In (Out) of Level 3 0   0 0
Balance at End of Period 176 140 176 140
Change in Unrealized Included in OCI 0   0 0
Subtotal Level 3 assets at fair value        
Fixed maturity securities available-for-sale:        
Balance at Beginning of Period 14,910 12,460    
Assets, Total (Losses) Gains Included in Earnings 88 2    
Assets, Total (Losses) Gains Included in AOCI (51) 36    
Assets, Purchases 1,494 1,195    
Assets, Sales (246) (69)    
Assets, Settlements (584) (448)    
Assets, Net transfer In (Out) of Level 3 43 62    
Balance at End of Period 15,654 13,238 15,654 13,238
Change in Unrealized Included in OCI $ (31) $ 38    
Liabilities        
Fair Value, Asset, Recurring Basis, Unobservable Input Reconciliation, Asset, Gain (Loss), Statement of Other Comprehensive Income or Comprehensive Income [Extensible Enumeration] Unrealized gain (loss) on investments and other financial instruments (excluding investments in unconsolidated affiliates) Unrealized gain (loss) on investments and other financial instruments (excluding investments in unconsolidated affiliates)    
Subtotal Level 3 assets at fair value | Level 3        
Fixed maturity securities available-for-sale:        
Balance at Beginning of Period     14,245 11,643
Assets, Total (Losses) Gains Included in Earnings     71 (17)
Assets, Total (Losses) Gains Included in AOCI     (141) 73
Assets, Purchases     2,677 2,647
Assets, Sales     (345) (526)
Assets, Settlements     (941) (644)
Assets, Net transfer In (Out) of Level 3     88 62
Balance at End of Period $ 15,654 $ 13,238 15,654 13,238
Change in Unrealized Included in OCI     (116) 71
Market risk benefits asset        
Fixed maturity securities available-for-sale:        
Balance at Beginning of Period 308 187    
Balance at End of Period 364 213 364 213
Market risk benefits asset | Level 3        
Fixed maturity securities available-for-sale:        
Balance at Beginning of Period     285 189
Balance at End of Period 364 213 364 213
Subtotal Level 3 liabilities at fair value        
Liabilities        
Balance at Beginning of Period 6,443 5,381    
Liabilities, Total (Losses) Gains Included in Earnings 552 209    
Liabilities, Total (Losses) Gains Included in AOCI 0 0    
Liabilities, Purchases 302 328    
Liabilities, Sales 0 0    
Liabilities, Settlements (151) (119)    
Liabilities, Net transfer In (Out) of Level 3 0 0    
Balance at End of Period 7,146 5,799 7,146 5,799
Change in Unrealized Included in OCI $ 0 $ 0 0 0
Fair Value, Liability, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Recognized gains and losses, net Recognized gains and losses, net    
Subtotal Level 3 liabilities at fair value | Level 3        
Liabilities        
Balance at Beginning of Period     6,623 5,294
Balance at End of Period $ 7,146 $ 5,799 7,146 5,799
Market risk benefits liability        
Liabilities        
Balance at Beginning of Period 968 635    
Balance at End of Period 1,102 711 1,102 711
Market risk benefits liability | Level 3        
Liabilities        
Balance at Beginning of Period     903 549
Balance at End of Period 1,102 711 1,102 711
Commercial mortgage-backed securities        
Fixed maturity securities available-for-sale:        
Balance at Beginning of Period   0   0
Assets, Total (Losses) Gains Included in Earnings   0   0
Assets, Total (Losses) Gains Included in AOCI   0   0
Assets, Purchases   3   3
Assets, Sales   0   0
Assets, Settlements   0   0
Assets, Net transfer In (Out) of Level 3   0   0
Balance at End of Period   3   3
Change in Unrealized Included in OCI   0   0
Equity securities        
Fixed maturity securities available-for-sale:        
Balance at Beginning of Period     17 10
Assets, Total (Losses) Gains Included in Earnings     0 0
Assets, Total (Losses) Gains Included in AOCI     0 0
Assets, Purchases     5 5
Assets, Sales     0 0
Assets, Settlements     0 0
Assets, Net transfer In (Out) of Level 3     (9) 0
Balance at End of Period 13 15 13 15
Change in Unrealized Included in OCI     0 0
Derivative investments        
Fixed maturity securities available-for-sale:        
Balance at Beginning of Period     0 3
Assets, Total (Losses) Gains Included in Earnings     11 (2)
Assets, Total (Losses) Gains Included in AOCI     0 (2)
Assets, Purchases     0 1
Assets, Sales     0 0
Assets, Settlements     (3) 0
Assets, Net transfer In (Out) of Level 3     0 0
Balance at End of Period $ 8 $ 0 8 0
Change in Unrealized Included in OCI     $ 0 $ (2)