v3.26.1
Fair Value - Schedule of Gross Components of Purchases, Issuances, Sales and Settlements, Net, and Net Transfers In (Out) (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Asset Management        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, (Sales), Issuances, (Settlements) [Abstract]        
Purchases $ 4,102 $ 679 $ 6,892 $ 1,318
Issuances 0 0 0 0
Sales (2,887) (329) (5,770) (1,306)
Settlements 0 0 0 0
Net Purchases, Issuances, Sales and Settlements 1,215 350 1,122 12
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net [Abstract]        
Transfers In 6 0 7 0
Transfers Out (430) (60) (916) (667)
Net Transfers In (Out) (424) (60) (909) (667)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Purchases, (Sales), Issuances, (Settlements) [Abstract]        
Purchases 0 0 0 0
Issuances 3 0 92 0
Sales 0 0 0 0
Settlements (32) (1) (49) (14)
Net Purchases, Issuances, Sales and Settlements (29) (1) 43 (14)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Transfers, Net [Abstract]        
Transfers In 0 0 0 0
Transfers Out 0 0 0 0
Net Transfers In (Out) 0 0 0 0
Asset Management | Due to related parties        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Purchases, (Sales), Issuances, (Settlements) [Abstract]        
Purchases 0   0  
Issuances 0   87  
Sales 0   0  
Settlements (29)   (29)  
Net Purchases, Issuances, Sales and Settlements (29)   58  
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Transfers, Net [Abstract]        
Transfers In 0   0  
Transfers Out 0   0  
Net Transfers In (Out) 0   0  
Asset Management | Contingent consideration obligations        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Purchases, (Sales), Issuances, (Settlements) [Abstract]        
Purchases 0 0 0 0
Issuances 0 0 0 0
Sales 0 0 0 0
Settlements (1) (1) (17) (14)
Net Purchases, Issuances, Sales and Settlements (1) (1) (17) (14)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Transfers, Net [Abstract]        
Transfers In 0 0 0 0
Transfers Out 0 0 0 0
Net Transfers In (Out) 0 0 0 0
Asset Management | Debt and other liabilities of consolidated VIEs        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Purchases, (Sales), Issuances, (Settlements) [Abstract]        
Purchases 0   0  
Issuances 3   5  
Sales 0   0  
Settlements (2)   (3)  
Net Purchases, Issuances, Sales and Settlements 1   2  
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Transfers, Net [Abstract]        
Transfers In 0   0  
Transfers Out 0   0  
Net Transfers In (Out) 0   0  
Asset Management | Investments and derivative assets        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, (Sales), Issuances, (Settlements) [Abstract]        
Purchases 1,250 15 2,007 29
Issuances 0 0 0 0
Sales (1,283) (10) (1,644) (10)
Settlements 0 0 0 0
Net Purchases, Issuances, Sales and Settlements (33) 5 363 19
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net [Abstract]        
Transfers In 6 0 6 0
Transfers Out (24) 0 (24) 0
Net Transfers In (Out) (18) 0 (18) 0
Asset Management | Investments        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, (Sales), Issuances, (Settlements) [Abstract]        
Net Purchases, Issuances, Sales and Settlements       19
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net [Abstract]        
Net Transfers In (Out)       0
Asset Management | Due to related parties        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Purchases, (Sales), Issuances, (Settlements) [Abstract]        
Net Purchases, Issuances, Sales and Settlements (29)   58  
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Transfers, Net [Abstract]        
Net Transfers In (Out) 0   0  
Asset Management | VIE, Primary Beneficiary | Debt and other liabilities of consolidated VIEs        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Purchases, (Sales), Issuances, (Settlements) [Abstract]        
Net Purchases, Issuances, Sales and Settlements 1   2  
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Transfers, Net [Abstract]        
Net Transfers In (Out) 0   0  
Asset Management | VIE, Primary Beneficiary | Investments        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, (Sales), Issuances, (Settlements) [Abstract]        
Purchases 2,852 664 4,885 1,289
Issuances 0 0 0 0
Sales (1,604) (319) (4,126) (1,296)
Settlements 0 0 0 0
Net Purchases, Issuances, Sales and Settlements 1,248 345 759 (7)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net [Abstract]        
Transfers In 0 0 1 0
Transfers Out (406) (60) (892) (667)
Net Transfers In (Out) (406) (60) (891) (667)
Retirement Services        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, (Sales), Issuances, (Settlements) [Abstract]        
Purchases 22,683 15,139 40,612 27,788
Issuances 47 49 77 90
Sales (1,350) (317) (1,779) (1,165)
Settlements (7,759) (5,074) (15,969) (8,584)
Net Purchases, Issuances, Sales and Settlements 13,621 9,797 22,941 18,129
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net [Abstract]        
Transfers In 146 46 261 724
Transfers Out (5,742) (718) (6,676) (5,577)
Net Transfers In (Out) (5,596) (672) (6,415) (4,853)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Purchases, (Sales), Issuances, (Settlements) [Abstract]        
Purchases 0 0 0 0
Issuances (1,001) (861) (1,618) (1,613)
Sales 0 0 0 0
Settlements 323 219 609 464
Net Purchases, Issuances, Sales and Settlements (678) (642) (1,009) (1,149)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Transfers, Net [Abstract]        
Transfers In 0 0 0 0
Transfers Out 0 0 0 0
Net Transfers In (Out) 0 0 0 0
Retirement Services | Interest sensitive contract liabilities        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Purchases, (Sales), Issuances, (Settlements) [Abstract]        
Purchases     0 0
Issuances     (1,618) (1,613)
Sales     0 0
Settlements     587 463
Net Purchases, Issuances, Sales and Settlements   (642) (1,031) (1,150)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Transfers, Net [Abstract]        
Transfers In     0 0
Transfers Out     0 0
Net Transfers In (Out)   0 0 0
Retirement Services | Embedded derivatives        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Purchases, (Sales), Issuances, (Settlements) [Abstract]        
Net Purchases, Issuances, Sales and Settlements (700) (642) (1,031) (1,150)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Transfers, Net [Abstract]        
Net Transfers In (Out) 0 0 0 0
Retirement Services | Derivative liabilities        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Purchases, (Sales), Issuances, (Settlements) [Abstract]        
Net Purchases, Issuances, Sales and Settlements 0   0 0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Transfers, Net [Abstract]        
Net Transfers In (Out) 0   0 0
Retirement Services | Other liabilities        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Purchases, (Sales), Issuances, (Settlements) [Abstract]        
Purchases 0   0 0
Issuances 0   0 0
Sales 0   0 0
Settlements 22   22 1
Net Purchases, Issuances, Sales and Settlements 22 0 22 1
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Transfers, Net [Abstract]        
Transfers In 0   0 0
Transfers Out 0   0 0
Net Transfers In (Out) 0 0 0 0
Retirement Services | Embedded derivatives | Interest sensitive contract liabilities        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Purchases, (Sales), Issuances, (Settlements) [Abstract]        
Purchases   0    
Issuances   (861)    
Sales   0    
Settlements   219    
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Transfers, Net [Abstract]        
Transfers In   0    
Transfers Out   0    
Retirement Services | Embedded derivatives | Embedded derivatives        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Purchases, (Sales), Issuances, (Settlements) [Abstract]        
Purchases 0      
Issuances (1,001)      
Sales 0      
Settlements 301      
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Transfers, Net [Abstract]        
Transfers In 0      
Transfers Out 0      
Retirement Services | AFS securities | Foreign governments        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, (Sales), Issuances, (Settlements) [Abstract]        
Purchases 0 0 5 0
Issuances 0 0 0 0
Sales 0 0 0 0
Settlements (6) (5) (6) (5)
Net Purchases, Issuances, Sales and Settlements (6) (5) (1) (5)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net [Abstract]        
Transfers In 0 0 0 0
Transfers Out (11) 0 (11) 0
Net Transfers In (Out) (11) 0 (11) 0
Retirement Services | AFS securities | Corporate        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, (Sales), Issuances, (Settlements) [Abstract]        
Purchases 482 1,872 1,379 3,427
Issuances 0 0 0 0
Sales (96) 0 (237) (6)
Settlements (96) (222) (204) (350)
Net Purchases, Issuances, Sales and Settlements 290 1,650 938 3,071
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net [Abstract]        
Transfers In 0 30 0 126
Transfers Out (2,114) 0 (2,830) (274)
Net Transfers In (Out) (2,114) 30 (2,830) (148)
Retirement Services | AFS securities | ABS        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, (Sales), Issuances, (Settlements) [Abstract]        
Purchases 2,247 2,563 5,688 2,792
Issuances 0 0 0 0
Sales (46) (11) (77) (23)
Settlements (515) (626) (962) (924)
Net Purchases, Issuances, Sales and Settlements 1,686 1,926 4,649 1,845
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net [Abstract]        
Transfers In 52 0 52 479
Transfers Out (2,597) (643) (2,763) (5,187)
Net Transfers In (Out) (2,545) (643) (2,711) (4,708)
Retirement Services | AFS securities | CMBS        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, (Sales), Issuances, (Settlements) [Abstract]        
Purchases 11   11 28
Issuances 0   0 0
Sales 0   (22) 0
Settlements 0   0 0
Net Purchases, Issuances, Sales and Settlements 11   (11) 28
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net [Abstract]        
Transfers In 0   0 13
Transfers Out 0   0 (14)
Net Transfers In (Out) 0   0 (1)
Retirement Services | AFS securities | RMBS        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, (Sales), Issuances, (Settlements) [Abstract]        
Purchases 0 248 0 297
Issuances 0 0 0 0
Sales 0 0 0 0
Settlements (34) (14) (66) (16)
Net Purchases, Issuances, Sales and Settlements (34) 234 (66) 281
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net [Abstract]        
Transfers In 0 0 0 0
Transfers Out 0 (49) 0 (49)
Net Transfers In (Out) 0 (49) 0 (49)
Retirement Services | Trading securities        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, (Sales), Issuances, (Settlements) [Abstract]        
Purchases 17 11 146 11
Issuances 0 0 0 0
Sales (2) 0 (2) 0
Settlements (1) 0 (2) (1)
Net Purchases, Issuances, Sales and Settlements 14 11 142 10
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net [Abstract]        
Transfers In 2 0 2 0
Transfers Out 0 0 (2) (14)
Net Transfers In (Out) 2 0 0 (14)
Retirement Services | Equity securities        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, (Sales), Issuances, (Settlements) [Abstract]        
Purchases   0   0
Issuances   0   0
Sales   0   0
Settlements   (18)   (18)
Net Purchases, Issuances, Sales and Settlements 0 (18) 0 (18)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net [Abstract]        
Transfers In   0   0
Transfers Out   0   0
Net Transfers In (Out) 0 0 0 0
Retirement Services | Mortgage loans        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, (Sales), Issuances, (Settlements) [Abstract]        
Purchases 12,628 8,750 19,142 17,760
Issuances 0 0 0 0
Sales (287) (40) (317) (172)
Settlements (4,822) (3,109) (9,401) (5,310)
Net Purchases, Issuances, Sales and Settlements 7,519 5,601 9,424 12,278
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net [Abstract]        
Transfers In 16 0 16 0
Transfers Out 0 0 0 0
Net Transfers In (Out) 16 0 16 0
Retirement Services | Embedded derivatives        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, (Sales), Issuances, (Settlements) [Abstract]        
Net Purchases, Issuances, Sales and Settlements 0 0 0 0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net [Abstract]        
Net Transfers In (Out) 0 0 0 0
Retirement Services | Derivative assets        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, (Sales), Issuances, (Settlements) [Abstract]        
Net Purchases, Issuances, Sales and Settlements 0 0 0 0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net [Abstract]        
Net Transfers In (Out) 0 0 0 0
Retirement Services | Short-term investments        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, (Sales), Issuances, (Settlements) [Abstract]        
Purchases   0 2 12
Issuances   0 0 0
Sales   0 0 0
Settlements   (36) (1) (168)
Net Purchases, Issuances, Sales and Settlements 0 (36) 1 (156)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net [Abstract]        
Transfers In   0 0 0
Transfers Out   0 0 (1)
Net Transfers In (Out) 0 0 0 (1)
Retirement Services | Other investments        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, (Sales), Issuances, (Settlements) [Abstract]        
Purchases 0 0 0 0
Issuances 0 0 0 0
Sales 0 0 0 0
Settlements (54) (156) (106) (156)
Net Purchases, Issuances, Sales and Settlements (54) (156) (106) (156)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net [Abstract]        
Transfers In 0 0 0 0
Transfers Out 0 0 0 0
Net Transfers In (Out) 0 0 0 0
Retirement Services | Reinsurance recoverable        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, (Sales), Issuances, (Settlements) [Abstract]        
Purchases 0   0  
Issuances 47   77  
Sales 0   0  
Settlements (7)   (13)  
Net Purchases, Issuances, Sales and Settlements 40 46 64 84
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net [Abstract]        
Transfers In 0   0  
Transfers Out 0   0  
Net Transfers In (Out) 0 0 0 0
Retirement Services | Due to related parties | AFS securities | Corporate        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, (Sales), Issuances, (Settlements) [Abstract]        
Purchases 1 0 1 5
Issuances 0 0 0 0
Sales 0 0 0 0
Settlements (2) (3) (228) (6)
Net Purchases, Issuances, Sales and Settlements (1) (3) (227) (1)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net [Abstract]        
Transfers In 0 0 0 0
Transfers Out 0 0 0 0
Net Transfers In (Out) 0 0 0 0
Retirement Services | Due to related parties | AFS securities | CLO        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, (Sales), Issuances, (Settlements) [Abstract]        
Purchases       376
Issuances       0
Sales       0
Settlements       0
Net Purchases, Issuances, Sales and Settlements       376
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net [Abstract]        
Transfers In       0
Transfers Out       0
Net Transfers In (Out)       0
Retirement Services | Due to related parties | AFS securities | ABS        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, (Sales), Issuances, (Settlements) [Abstract]        
Purchases 6,864 1,055 11,539 2,259
Issuances 0 0 0 0
Sales (869) 0 (951) 0
Settlements (1,914) (662) (4,230) (1,242)
Net Purchases, Issuances, Sales and Settlements 4,081 393 6,358 1,017
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net [Abstract]        
Transfers In 76 14 172 14
Transfers Out 0 (15) 0 (15)
Net Transfers In (Out) 76 (1) 172 (1)
Retirement Services | Due to related parties | Trading securities        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, (Sales), Issuances, (Settlements) [Abstract]        
Purchases 0 48 928 70
Issuances 0 0 0 0
Sales 0 0 0 (91)
Settlements (69) (88) (72) (155)
Net Purchases, Issuances, Sales and Settlements (69) (40) 856 (176)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net [Abstract]        
Transfers In 0 2 19 2
Transfers Out 0 0 0 0
Net Transfers In (Out) 0 2 19 2
Retirement Services | Due to related parties | Equity securities        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, (Sales), Issuances, (Settlements) [Abstract]        
Purchases     0  
Issuances     0  
Sales     0  
Settlements     (262)  
Net Purchases, Issuances, Sales and Settlements   0 (262) 0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net [Abstract]        
Transfers In     0  
Transfers Out     0  
Net Transfers In (Out)   0 0 0
Retirement Services | Due to related parties | Mortgage loans        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, (Sales), Issuances, (Settlements) [Abstract]        
Purchases 102 0 223 0
Issuances 0 0 0 0
Sales 0 0 0 (15)
Settlements (110) (31) (153) (31)
Net Purchases, Issuances, Sales and Settlements (8) (31) 70 (46)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net [Abstract]        
Transfers In 0 0 0 0
Transfers Out 0 0 0 0
Net Transfers In (Out) 0 0 0 0
Retirement Services | Due to related parties | Investment funds        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, (Sales), Issuances, (Settlements) [Abstract]        
Purchases   3 1,006 3
Issuances   0 0 0
Sales   0 (5) 0
Settlements   0 0 0
Net Purchases, Issuances, Sales and Settlements 0 3 1,001 3
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net [Abstract]        
Transfers In   0 0 0
Transfers Out   0 0 0
Net Transfers In (Out) 0 0 0 0
Retirement Services | Due to related parties | Embedded derivatives        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, (Sales), Issuances, (Settlements) [Abstract]        
Net Purchases, Issuances, Sales and Settlements 0 0 0 0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net [Abstract]        
Net Transfers In (Out) 0 0 0 0
Retirement Services | Due to related parties | Other investments        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, (Sales), Issuances, (Settlements) [Abstract]        
Net Purchases, Issuances, Sales and Settlements 0 0 0 0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net [Abstract]        
Net Transfers In (Out) 0 0 0 0
Retirement Services | VIE, Primary Beneficiary | Trading securities        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, (Sales), Issuances, (Settlements) [Abstract]        
Purchases 49 291 195 435
Issuances 0 0 0 0
Sales (28) (262) (104) (335)
Settlements 0 0 0 0
Net Purchases, Issuances, Sales and Settlements 21 29 91 100
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net [Abstract]        
Transfers In 0 0 0 90
Transfers Out (902) (11) (952) (23)
Net Transfers In (Out) (902) (11) (952) 67
Retirement Services | VIE, Primary Beneficiary | Mortgage loans        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, (Sales), Issuances, (Settlements) [Abstract]        
Purchases 282 19 347 34
Issuances 0 0 0 0
Sales (22) (3) (64) (10)
Settlements (129) (101) (263) (196)
Net Purchases, Issuances, Sales and Settlements 131 (85) 20 (172)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net [Abstract]        
Transfers In 0 0 0 0
Transfers Out (118) 0 (118) 0
Net Transfers In (Out) (118) 0 (118) 0
Retirement Services | VIE, Primary Beneficiary | Investment funds        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, (Sales), Issuances, (Settlements) [Abstract]        
Purchases   0   0
Issuances   0   0
Sales   (1)   (497)
Settlements   0   0
Net Purchases, Issuances, Sales and Settlements 0 (1) 0 (497)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net [Abstract]        
Transfers In   0   0
Transfers Out   0   0
Net Transfers In (Out) $ 0 0 $ 0 0
Retirement Services | VIE, Primary Beneficiary | Other investments        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, (Sales), Issuances, (Settlements) [Abstract]        
Purchases   279   279
Issuances   0   0
Sales   0   (16)
Settlements   0   0
Net Purchases, Issuances, Sales and Settlements   279   263
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net [Abstract]        
Transfers In   0   0
Transfers Out   0   0
Net Transfers In (Out)   0   0
Retirement Services | VIE, Primary Beneficiary | Reinsurance recoverable        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, (Sales), Issuances, (Settlements) [Abstract]        
Purchases   0   0
Issuances   49   90
Sales   0   0
Settlements   (3)   (6)
Net Purchases, Issuances, Sales and Settlements   46   84
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net [Abstract]        
Transfers In   0   0
Transfers Out   0   0
Net Transfers In (Out)   $ 0   $ 0