v3.26.1
Fair Value - Gross Components of Purchases, Sales, Issuances and Settlements, net (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Mar. 31, 2026
Dec. 31, 2025
Mar. 31, 2025
Dec. 31, 2024
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]                
Purchases $ 22,833 $ 15,189 $ 40,875 $ 28,169        
Issuances 47 49 77 90        
Sales (1,350) (317) (1,779) (1,165)        
Settlements (7,851) (5,074) (16,152) (8,584)        
Purchases, (Sales), Issuances, (Settlements) 13,679 9,847 23,021 18,510        
Transfers in 0 0 6 351        
Transfers (out) (5,742) (718) (6,676) (5,577)        
Transfers in (out) (5,742) (718) (6,670) (5,226)        
Purchases 0 0 0 0        
Issuances (1,001) (861) (1,618) (1,613)        
Sales 0 0 0 0        
Settlements 323 219 609 464        
Purchases, (Sales), Issuances, (Settlements), Liabilities (678) (642) (1,009) (1,149)        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Liability, Transfers Into Level 3 0 0 0 0        
Transfers (out) 0 0 0 0        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Transfers, Net 0 0 0 0        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value 162,601 121,135 162,601 121,135 $ 155,078 $ 148,140 $ 110,203 $ 104,348
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value 18,872 14,979 18,872 14,979 16,023 17,384 13,409 13,850
Foreign governments | Consolidated Entity, excluding Affiliated Entity                
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]                
Purchases, (Sales), Issuances, (Settlements) (6) (5) (1) (5)        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value 0 23 0 23 17 12 28 29
Foreign governments | Consolidated Entity, Excluding Variable Interest Entities (VIE) and Investments in Related Party                
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]                
Purchases       0        
Issuances       0        
Sales       0        
Settlements       (5)        
Purchases, (Sales), Issuances, (Settlements)   (5)   (5)        
Transfers in       0        
Transfers (out)       0        
Transfers in (out)   0   0        
Corporate | Consolidated Entity, excluding Affiliated Entity                
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]                
Purchases, (Sales), Issuances, (Settlements) 290 1,680 938 3,101        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value 4,653 7,392 4,653 7,392 6,428 6,650 5,605 4,321
Corporate | Related Party                
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]                
Purchases 5 4 9 13        
Issuances 0 0 0 0        
Sales 0 0 0 0        
Settlements (94) (3) (411) (6)        
Purchases, (Sales), Issuances, (Settlements) (89) 1 (402) 7        
Transfers in 0   0 0        
Transfers (out) 0   0 0        
Transfers in (out) 0 0 0 0        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value 1,196 1,476 1,196 1,476 1,299 1,597 1,435 1,432
Transfers in adjusted   0            
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3, Including Prior Period Adjustments   0            
Corporate | Consolidated Entity, Excluding Variable Interest Entities (VIE) and Investments in Related Party                
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]                
Purchases 482 1,902 1,379 3,457        
Issuances 0 0 0 0        
Sales (96) 0 (237) (6)        
Settlements (96) (222) (204) (350)        
Purchases, (Sales), Issuances, (Settlements) 290 1,680 938 3,101        
Transfers in 0   0 96        
Transfers (out) (2,114)   (2,830) (274)        
Transfers in (out) (2,114) 0 (2,830) (178)        
Transfers in adjusted   0            
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3, Including Prior Period Adjustments   0            
ABS | Consolidated Entity, excluding Affiliated Entity                
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]                
Purchases, (Sales), Issuances, (Settlements) 1,738 1,926 4,701 2,082        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value 23,932 14,144 23,932 14,144 24,784 22,207 12,572 16,529
ABS | Related Party                
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]                
Purchases 6,940 1,069 11,705 2,273        
Issuances 0 0 0 0        
Sales (869) 0 (951) 0        
Settlements (1,914) (662) (4,230) (1,242)        
Purchases, (Sales), Issuances, (Settlements) 4,157 407 6,524 1,031        
Transfers in 0   6 0        
Transfers (out) 0   0 (15)        
Transfers in (out) 0 (15) 6 (15)        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value 21,766 10,810 21,766 10,810 17,603 15,277 10,385 9,741
Transfers in adjusted   0            
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3, Including Prior Period Adjustments   (15)            
ABS | Consolidated Entity, Excluding Variable Interest Entities (VIE) and Investments in Related Party                
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]                
Purchases 2,299 2,563 5,740 3,029        
Issuances 0 0 0 0        
Sales (46) (11) (77) (23)        
Settlements (515) (626) (962) (924)        
Purchases, (Sales), Issuances, (Settlements) 1,738 1,926 4,701 2,082        
Transfers in 0   0 242        
Transfers (out) (2,597)   (2,763) (5,187)        
Transfers in (out) (2,597) (643) (2,763) (4,945)        
Transfers in adjusted   0            
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3, Including Prior Period Adjustments   (643)            
CMBS | Consolidated Entity, excluding Affiliated Entity                
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]                
Purchases, (Sales), Issuances, (Settlements) 11 0 (11) 28        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value 30 0 30 0 19 41 0 0
CMBS | Consolidated Entity, Excluding Variable Interest Entities (VIE) and Investments in Related Party                
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]                
Purchases 11   11 28        
Issuances 0   0 0        
Sales 0   (22) 0        
Settlements 0   0 0        
Purchases, (Sales), Issuances, (Settlements) 11   (11) 28        
Transfers in 0   0 13        
Transfers (out) 0   0 (14)        
Transfers in (out) 0 0 0 (1)        
RMBS | Consolidated Entity, excluding Affiliated Entity                
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]                
Purchases, (Sales), Issuances, (Settlements) (34) 234 (66) 281        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value 381 498 381 498 411 439 306 256
RMBS | Consolidated Entity, Excluding Variable Interest Entities (VIE) and Investments in Related Party                
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]                
Purchases 0 248 0 297        
Issuances 0 0 0 0        
Sales 0 0 0 0        
Settlements (34) (14) (66) (16)        
Purchases, (Sales), Issuances, (Settlements) (34) 234 (66) 281        
Transfers in 0   0 0        
Transfers (out) 0   0 (49)        
Transfers in (out) 0 (49) 0 (49)        
Transfers in adjusted   0            
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3, Including Prior Period Adjustments   (49)            
Trading securities | Consolidated Entity, excluding Affiliated Entity                
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]                
Purchases, (Sales), Issuances, (Settlements) 16 11 144 10        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value 160 18 160 18 143 18 7 22
Trading securities | Related Party                
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]                
Purchases 0 50 947 72        
Issuances 0 0 0 0        
Sales 0 0 0 (91)        
Settlements (69) (88) (72) (155)        
Purchases, (Sales), Issuances, (Settlements) (69) (38) 875 (174)        
Transfers in 0   0 0        
Transfers (out) 0   0 0        
Transfers in (out) 0 0 0 0        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value 1,290 399 1,290 399 1,376 454 437 573
Transfers in adjusted   0            
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3, Including Prior Period Adjustments   0            
Trading securities | Variable Interest Entities                
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]                
Purchases 49 291 195 525        
Issuances 0 0 0 0        
Sales (28) (262) (104) (335)        
Settlements 0 0 0 0        
Purchases, (Sales), Issuances, (Settlements) 21 29 91 190        
Transfers in 0   0 0        
Transfers (out) (902)   (952) (23)        
Transfers in (out) (902) (11) (952) (23)        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value 1,509 2,338 1,509 2,338 2,411 2,437 2,170 1,954
Transfers in adjusted   0            
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3, Including Prior Period Adjustments   (11)            
Trading securities | Consolidated Entity, Excluding Variable Interest Entities (VIE) and Investments in Related Party                
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]                
Purchases 19 11 148 11        
Issuances 0 0 0 0        
Sales (2) 0 (2) 0        
Settlements (1) 0 (2) (1)        
Purchases, (Sales), Issuances, (Settlements) 16 11 144 10        
Transfers in 0   0 0        
Transfers (out) 0   (2) (14)        
Transfers in (out) 0 0 (2) (14)        
Transfers in adjusted   0            
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3, Including Prior Period Adjustments   0            
Equity securities | Consolidated Entity, excluding Affiliated Entity                
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]                
Purchases, (Sales), Issuances, (Settlements) 0 (18) 0 (18)        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value 7 8 7 8 8 8 26 27
Equity securities | Related Party                
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]                
Purchases     0          
Issuances     0          
Sales     0          
Settlements     (262)          
Purchases, (Sales), Issuances, (Settlements)   0 (262) 0        
Transfers in     0          
Transfers (out)     0          
Transfers in (out)   0 0 0        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value 0 266 0 266   266 244 234
Equity securities | Consolidated Entity, Excluding Variable Interest Entities (VIE) and Investments in Related Party                
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]                
Purchases   0   0        
Issuances   0   0        
Sales   0   0        
Settlements   (18)   (18)        
Purchases, (Sales), Issuances, (Settlements)   (18)   (18)        
Transfers in       0        
Transfers (out)       0        
Transfers in (out) 0 0 0 0        
Transfers in adjusted   0            
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3, Including Prior Period Adjustments   0            
Derivatives | Consolidated Entity, excluding Affiliated Entity                
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]                
Purchases, (Sales), Issuances, (Settlements) 0   0          
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value 3   3   2 2    
Derivatives | Consolidated Entity, Excluding Variable Interest Entities (VIE) and Investments in Related Party                
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]                
Transfers in (out) 0   0 0        
Mortgage loans | Consolidated Entity, excluding Affiliated Entity                
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]                
Purchases, (Sales), Issuances, (Settlements) 7,535 5,601 9,440 12,278        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value 99,974 77,289 99,974 77,289 93,077 91,918 70,916 63,239
Mortgage loans | Related Party                
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]                
Purchases 102 0 223 0        
Issuances 0 0 0 0        
Sales 0 0 0 (15)        
Settlements (110) (31) (153) (31)        
Purchases, (Sales), Issuances, (Settlements) (8) (31) 70 (46)        
Transfers in 0   0 0        
Transfers (out) 0   0 0        
Transfers in (out) 0 0 0 0        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value 1,549 1,275 1,549 1,275 1,557 1,486 1,296 1,297
Transfers in adjusted   0            
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3, Including Prior Period Adjustments   0            
Mortgage loans | Variable Interest Entities                
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]                
Purchases 282 19 347 34        
Issuances 0 0 0 0        
Sales (22) (3) (64) (10)        
Settlements (129) (101) (263) (196)        
Purchases, (Sales), Issuances, (Settlements) 131 (85) 20 (172)        
Transfers in 0   0 0        
Transfers (out) (118)   (118) 0        
Transfers in (out) (118) 0 (118) 0        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value 2,058 2,544 2,058 2,544 2,031 2,140 2,519 2,579
Transfers in adjusted   0            
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3, Including Prior Period Adjustments   0            
Mortgage loans | Consolidated Entity, Excluding Variable Interest Entities (VIE) and Investments in Related Party                
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]                
Purchases 12,644 8,750 19,158 17,760        
Issuances 0 0 0 0        
Sales (287) (40) (317) (172)        
Settlements (4,822) (3,109) (9,401) (5,310)        
Purchases, (Sales), Issuances, (Settlements) 7,535 5,601 9,440 12,278        
Transfers in 0   0 0        
Transfers (out) 0   0 0        
Transfers in (out) 0 0 0 0        
Transfers in adjusted   0            
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3, Including Prior Period Adjustments   0            
Short-term investments | Consolidated Entity, excluding Affiliated Entity                
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]                
Purchases, (Sales), Issuances, (Settlements) 0 (36) 1 (156)        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value 1 12 1 12 1 0 48 169
Short-term investments | Consolidated Entity, Excluding Variable Interest Entities (VIE) and Investments in Related Party                
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]                
Purchases   0 2 12        
Issuances   0 0 0        
Sales   0 0 0        
Settlements   (36) (1) (168)        
Purchases, (Sales), Issuances, (Settlements)   (36) 1 (156)        
Transfers in     0 0        
Transfers (out)     0 (1)        
Transfers in (out) 0 0 0 (1)        
Transfers in adjusted   0            
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3, Including Prior Period Adjustments   0            
Investment funds | Related Party                
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]                
Purchases   3 1,006 3        
Issuances   0 0 0        
Sales   0 (5) 0        
Settlements   0 0 0        
Purchases, (Sales), Issuances, (Settlements) 0 3 1,001 3        
Transfers in   0 0          
Transfers (out)   0 0          
Transfers in (out) 0 0 0 0        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value 2,311 1,297 2,311 1,297 2,310 1,318 1,180 1,139
Investment funds | Variable Interest Entities                
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]                
Purchases   0   0        
Issuances   0   0        
Sales   (1)   (497)        
Settlements   0   0        
Purchases, (Sales), Issuances, (Settlements) 0 (1) 0 (497)        
Transfers in       0        
Transfers (out)       0        
Transfers in (out) 0 0 0 0        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value 290 270 290 270 288 286 289 770
Transfers in adjusted   0            
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3, Including Prior Period Adjustments   0            
Reinsurance recoverable                
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]                
Purchases 0 0 0 0        
Issuances 47 49 77 90        
Sales 0 0 0 0        
Settlements (7) (3) (13) (6)        
Purchases, (Sales), Issuances, (Settlements) 40 46 64 84        
Transfers in 0   0 0        
Transfers (out) 0   0 0        
Transfers in (out) 0 0 0 0        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value 1,920 1,780 1,920 1,780 1,851 1,911 1,729 1,661
Transfers in adjusted   0            
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3, Including Prior Period Adjustments   0            
Other Investments | Consolidated Entity, excluding Affiliated Entity                
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]                
Purchases, (Sales), Issuances, (Settlements) (54) (156) (106) (156)        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value 655 741 655 741 709 761 896 895
Other Investments | Related Party                
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]                
Purchases, (Sales), Issuances, (Settlements) 0 0 0 0        
Transfers in (out) 0 0 0 0        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value 333 339 333 339 341 344 340 331
Other Investments | Variable Interest Entities                
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]                
Purchases   279   279        
Issuances   0   0        
Sales   0   (16)        
Settlements   0   0        
Purchases, (Sales), Issuances, (Settlements)   279   263        
Transfers in       0        
Transfers (out)       0        
Transfers in (out)   0   0        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value   366   366     91 103
Transfers in adjusted   0            
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3, Including Prior Period Adjustments   0            
Other Investments | Consolidated Entity, Excluding Variable Interest Entities (VIE) and Investments in Related Party                
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]                
Purchases 0 0 0 0        
Issuances 0 0 0 0        
Sales 0 0 0 0        
Settlements (54) (156) (106) (156)        
Purchases, (Sales), Issuances, (Settlements) (54) (156) (106) (156)        
Transfers in 0 0 0 0        
Transfers (out) 0 0 0 0        
Transfers in (out) 0 0 0 0        
CLO | Related Party                
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]                
Purchases       376        
Issuances       0        
Sales       0        
Settlements       0        
Purchases, (Sales), Issuances, (Settlements)   0   376        
Transfers in       0        
Transfers (out)       0        
Transfers in (out) 0 0 0 0        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value   1,070   1,070     1,070 696
Foreign Government Debt | Consolidated Entity, Excluding Variable Interest Entities (VIE) and Investments in Related Party                
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]                
Purchases 0 0 5          
Issuances 0 0 0          
Sales 0 0 0          
Settlements (6) (5) (6)          
Purchases, (Sales), Issuances, (Settlements) (6)   (1)          
Transfers in 0 0 0          
Transfers (out) (11) 0 (11)          
Transfers in (out) (11)   (11)          
Embedded derivatives | Funds withheld at interest | Consolidated Entity, excluding Affiliated Entity                
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]                
Purchases, (Sales), Issuances, (Settlements) 0 0 0 0        
Transfers in (out) 0 0 0 0        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value (2,404) (2,743) (2,404) (2,743) (2,540) (2,409) (2,847) (3,035)
Embedded derivatives | Funds withheld at interest | Related Party                
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]                
Purchases, (Sales), Issuances, (Settlements) 0 0 0 0        
Transfers in (out) 0 0 0 0        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value (347) (478) (347) (478) (381) (356) (540) (615)
Embedded derivatives | Derivatives | Consolidated Entity, excluding Affiliated Entity                
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]                
Purchases, (Sales), Issuances, (Settlements)   0   0        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value   1   1     1 1
Interest Sensitive Contracts | Universal life                
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]                
Purchases, (Sales), Issuances, (Settlements), Liabilities 0 0 0 0        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Liability, Transfers Into Level 3 0 0 0 0        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value 742 755 742 755 744 766 769 742
Interest Sensitive Contracts | Embedded derivatives                
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]                
Purchases 0 0 0 0        
Issuances (1,001) (861) (1,618) (1,613)        
Sales 0 0 0 0        
Settlements 301 219 587 463        
Purchases, (Sales), Issuances, (Settlements), Liabilities (700) (642) (1,031) (1,150)        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Liability, Transfers Into Level 3 0 0 0 0        
Transfers (out) 0 0 0 0        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Transfers, Net 0 0 0 0        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value 16,384 12,276 16,384 12,276 13,549 14,749 10,747 11,242
Derivative Financial Instruments, Liabilities                
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]                
Purchases, (Sales), Issuances, (Settlements), Liabilities 0   0 0        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Liability, Transfers Into Level 3 0   0 0        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value 8 0 8 0 0 0   1
Future Policy Benefits | AmerUs Closed Block                
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]                
Purchases, (Sales), Issuances, (Settlements), Liabilities 0 0 0 0        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Liability, Transfers Into Level 3 0 0 0 0        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value 1,054 1,097 1,054 1,097 1,061 1,085 1,107 1,102
Future Policy Benefits | ILICO Closed Block and life benefits                
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]                
Purchases, (Sales), Issuances, (Settlements), Liabilities 0 0 0 0        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Liability, Transfers Into Level 3 0 0 0 0        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value 510 556 510 556 526 530 556 538
Other Liabilities                
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]                
Purchases 0   0 0        
Issuances 0   0 0        
Sales 0   0 0        
Settlements 22   22 1        
Purchases, (Sales), Issuances, (Settlements), Liabilities 22 0 22 1        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Liability, Transfers Into Level 3 0 0 0 0        
Transfers (out) 0   0 0        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Transfers, Net 0   0 0        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value $ 174 $ 295 $ 174 $ 295 $ 143 $ 254 $ 230 $ 225