v3.26.1
Policyholders' Account Balances (Range of Guaranteed Minimum Crediting Rate) (Details)
$ in Millions
Jun. 30, 2026
USD ($)
Jun. 30, 2025
USD ($)
1 - 50 bps above guaranteed minimum | Minimum    
Policyholder Account Balance [Line Items]    
Policyholder account balance above guaranteed minimum crediting rate 1 1
1 - 50 bps above guaranteed minimum | Maximum    
Policyholder Account Balance [Line Items]    
Policyholder account balance above guaranteed minimum crediting rate 50 50
51 - 150 bps above guaranteed minimum | Minimum    
Policyholder Account Balance [Line Items]    
Policyholder account balance above guaranteed minimum crediting rate 51 51
51 - 150 bps above guaranteed minimum | Maximum    
Policyholder Account Balance [Line Items]    
Policyholder account balance above guaranteed minimum crediting rate 150 150
Greater than 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Policyholder account balance above guaranteed minimum crediting rate 150 150
Retirement    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 20,828 $ 16,342
Retirement | At guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 15,825 13,883
Retirement | 1 - 50 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 2,237 514
Retirement | 51 - 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 827 757
Retirement | Greater than 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 1,939 1,188
Group Insurance - Life / Disability    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 2,405 2,267
Group Insurance - Life / Disability | At guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 1,444 1,489
Group Insurance - Life / Disability | 1 - 50 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 4 6
Group Insurance - Life / Disability | 51 - 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 74 51
Group Insurance - Life / Disability | Greater than 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 883 721
Individual Life - Variable / Universal Life    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 10,724 10,932
Individual Life - Variable / Universal Life | At guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 7,567 7,827
Individual Life - Variable / Universal Life | 1 - 50 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 734 450
Individual Life - Variable / Universal Life | 51 - 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 1,399 1,643
Individual Life - Variable / Universal Life | Greater than 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 1,024 1,012
U.S. Legacy Products - Annuities    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 3,522 4,094
U.S. Legacy Products - Annuities | At guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 2,256 3,012
U.S. Legacy Products - Annuities | 1 - 50 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 598 624
U.S. Legacy Products - Annuities | 51 - 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 668 458
U.S. Legacy Products - Annuities | Greater than 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 0 0
U.S. Legacy Products - Guaranteed Universal Life    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 12,747 12,671
U.S. Legacy Products - Guaranteed Universal Life | At guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 3,418 3,711
U.S. Legacy Products - Guaranteed Universal Life | 1 - 50 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 1,101 3,068
U.S. Legacy Products - Guaranteed Universal Life | 51 - 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 4,698 4,471
U.S. Legacy Products - Guaranteed Universal Life | Greater than 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 3,530 1,421
International Businesses    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 56,651 54,245
International Businesses | At guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 56,167 53,884
International Businesses | 1 - 50 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 417 335
International Businesses | 51 - 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 67 26
International Businesses | Greater than 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 0 $ 0
Less than 1.00% | Retirement    
Policyholder Account Balance [Line Items]    
Range of Guaranteed Minimum Crediting Rates 1.00% 1.00%
Account Values with Crediting Rates $ 2,174 $ 1,780
Less than 1.00% | Retirement | At guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 230 640
Less than 1.00% | Retirement | 1 - 50 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 20 4
Less than 1.00% | Retirement | 51 - 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 43 18
Less than 1.00% | Retirement | Greater than 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 1,881 $ 1,118
Less than 1.00% | Group Insurance - Life / Disability    
Policyholder Account Balance [Line Items]    
Range of Guaranteed Minimum Crediting Rates 1.00% 1.00%
Account Values with Crediting Rates $ 877 $ 712
Less than 1.00% | Group Insurance - Life / Disability | At guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 0 0
Less than 1.00% | Group Insurance - Life / Disability | 1 - 50 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 0 0
Less than 1.00% | Group Insurance - Life / Disability | 51 - 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 0 0
Less than 1.00% | Group Insurance - Life / Disability | Greater than 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 877 $ 712
Less than 1.00% | Individual Life - Variable / Universal Life    
Policyholder Account Balance [Line Items]    
Range of Guaranteed Minimum Crediting Rates 1.00% 1.00%
Account Values with Crediting Rates $ 356 $ 354
Less than 1.00% | Individual Life - Variable / Universal Life | At guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 0 0
Less than 1.00% | Individual Life - Variable / Universal Life | 1 - 50 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 0 0
Less than 1.00% | Individual Life - Variable / Universal Life | 51 - 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 356 0
Less than 1.00% | Individual Life - Variable / Universal Life | Greater than 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 0 $ 354
Less than 1.00% | U.S. Legacy Products - Annuities    
Policyholder Account Balance [Line Items]    
Range of Guaranteed Minimum Crediting Rates 1.00% 1.00%
Account Values with Crediting Rates $ 681 $ 1,033
Less than 1.00% | U.S. Legacy Products - Annuities | At guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 15 422
Less than 1.00% | U.S. Legacy Products - Annuities | 1 - 50 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 60 204
Less than 1.00% | U.S. Legacy Products - Annuities | 51 - 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 606 407
Less than 1.00% | U.S. Legacy Products - Annuities | Greater than 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 0 $ 0
Less than 1.00% | U.S. Legacy Products - Guaranteed Universal Life    
Policyholder Account Balance [Line Items]    
Range of Guaranteed Minimum Crediting Rates 1.00% 1.00%
Account Values with Crediting Rates $ 0 $ 0
Less than 1.00% | U.S. Legacy Products - Guaranteed Universal Life | At guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 0 0
Less than 1.00% | U.S. Legacy Products - Guaranteed Universal Life | 1 - 50 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 0 0
Less than 1.00% | U.S. Legacy Products - Guaranteed Universal Life | 51 - 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 0 0
Less than 1.00% | U.S. Legacy Products - Guaranteed Universal Life | Greater than 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 0 $ 0
Less than 1.00% | International Businesses    
Policyholder Account Balance [Line Items]    
Range of Guaranteed Minimum Crediting Rates 1.00% 1.00%
Account Values with Crediting Rates $ 3,331 $ 3,955
Less than 1.00% | International Businesses | At guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 3,308 3,932
Less than 1.00% | International Businesses | 1 - 50 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 23 23
Less than 1.00% | International Businesses | 51 - 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 0 0
Less than 1.00% | International Businesses | Greater than 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 0 0
1.00% - 1.99% | Retirement    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 2,087 $ 2,233
1.00% - 1.99% | Retirement | Minimum    
Policyholder Account Balance [Line Items]    
Range of Guaranteed Minimum Crediting Rates 1.00% 1.00%
1.00% - 1.99% | Retirement | Maximum    
Policyholder Account Balance [Line Items]    
Range of Guaranteed Minimum Crediting Rates 1.99% 1.99%
1.00% - 1.99% | Retirement | At guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 1,870 $ 1,948
1.00% - 1.99% | Retirement | 1 - 50 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 34 55
1.00% - 1.99% | Retirement | 51 - 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 137 178
1.00% - 1.99% | Retirement | Greater than 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 46 52
1.00% - 1.99% | Group Insurance - Life / Disability    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 5 $ 2
1.00% - 1.99% | Group Insurance - Life / Disability | Minimum    
Policyholder Account Balance [Line Items]    
Range of Guaranteed Minimum Crediting Rates 1.00% 1.00%
1.00% - 1.99% | Group Insurance - Life / Disability | Maximum    
Policyholder Account Balance [Line Items]    
Range of Guaranteed Minimum Crediting Rates 1.99% 1.99%
1.00% - 1.99% | Group Insurance - Life / Disability | At guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 3 $ 0
1.00% - 1.99% | Group Insurance - Life / Disability | 1 - 50 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 0 0
1.00% - 1.99% | Group Insurance - Life / Disability | 51 - 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 0 0
1.00% - 1.99% | Group Insurance - Life / Disability | Greater than 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 2 2
1.00% - 1.99% | Individual Life - Variable / Universal Life    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 1,199 $ 1,013
1.00% - 1.99% | Individual Life - Variable / Universal Life | Minimum    
Policyholder Account Balance [Line Items]    
Range of Guaranteed Minimum Crediting Rates 1.00% 1.00%
1.00% - 1.99% | Individual Life - Variable / Universal Life | Maximum    
Policyholder Account Balance [Line Items]    
Range of Guaranteed Minimum Crediting Rates 1.99% 1.99%
1.00% - 1.99% | Individual Life - Variable / Universal Life | At guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 521 $ 325
1.00% - 1.99% | Individual Life - Variable / Universal Life | 1 - 50 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 264 0
1.00% - 1.99% | Individual Life - Variable / Universal Life | 51 - 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 0 340
1.00% - 1.99% | Individual Life - Variable / Universal Life | Greater than 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 414 348
1.00% - 1.99% | U.S. Legacy Products - Annuities    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 600 $ 561
1.00% - 1.99% | U.S. Legacy Products - Annuities | Minimum    
Policyholder Account Balance [Line Items]    
Range of Guaranteed Minimum Crediting Rates 1.00% 1.00%
1.00% - 1.99% | U.S. Legacy Products - Annuities | Maximum    
Policyholder Account Balance [Line Items]    
Range of Guaranteed Minimum Crediting Rates 1.99% 1.99%
1.00% - 1.99% | U.S. Legacy Products - Annuities | At guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 69 $ 136
1.00% - 1.99% | U.S. Legacy Products - Annuities | 1 - 50 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 485 387
1.00% - 1.99% | U.S. Legacy Products - Annuities | 51 - 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 46 38
1.00% - 1.99% | U.S. Legacy Products - Annuities | Greater than 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 0 0
1.00% - 1.99% | U.S. Legacy Products - Guaranteed Universal Life    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 3,258 $ 3,002
1.00% - 1.99% | U.S. Legacy Products - Guaranteed Universal Life | Minimum    
Policyholder Account Balance [Line Items]    
Range of Guaranteed Minimum Crediting Rates 1.00% 1.00%
1.00% - 1.99% | U.S. Legacy Products - Guaranteed Universal Life | Maximum    
Policyholder Account Balance [Line Items]    
Range of Guaranteed Minimum Crediting Rates 1.99% 1.99%
1.00% - 1.99% | U.S. Legacy Products - Guaranteed Universal Life | At guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 19 $ 16
1.00% - 1.99% | U.S. Legacy Products - Guaranteed Universal Life | 1 - 50 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 0 0
1.00% - 1.99% | U.S. Legacy Products - Guaranteed Universal Life | 51 - 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 0 1,732
1.00% - 1.99% | U.S. Legacy Products - Guaranteed Universal Life | Greater than 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 3,239 1,254
1.00% - 1.99% | International Businesses    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 13,730 $ 16,482
1.00% - 1.99% | International Businesses | Minimum    
Policyholder Account Balance [Line Items]    
Range of Guaranteed Minimum Crediting Rates 1.00% 1.00%
1.00% - 1.99% | International Businesses | Maximum    
Policyholder Account Balance [Line Items]    
Range of Guaranteed Minimum Crediting Rates 1.99% 1.99%
1.00% - 1.99% | International Businesses | At guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 13,613 $ 16,450
1.00% - 1.99% | International Businesses | 1 - 50 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 117 32
1.00% - 1.99% | International Businesses | 51 - 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 0 0
1.00% - 1.99% | International Businesses | Greater than 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 0 0
2.00% - 2.99% | Retirement    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 3,008 $ 1,188
2.00% - 2.99% | Retirement | Minimum    
Policyholder Account Balance [Line Items]    
Range of Guaranteed Minimum Crediting Rates 2.00% 2.00%
2.00% - 2.99% | Retirement | Maximum    
Policyholder Account Balance [Line Items]    
Range of Guaranteed Minimum Crediting Rates 2.99% 2.99%
2.00% - 2.99% | Retirement | At guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 184 $ 174
2.00% - 2.99% | Retirement | 1 - 50 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 2,178 449
2.00% - 2.99% | Retirement | 51 - 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 636 550
2.00% - 2.99% | Retirement | Greater than 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 10 15
2.00% - 2.99% | Group Insurance - Life / Disability    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 38 $ 44
2.00% - 2.99% | Group Insurance - Life / Disability | Minimum    
Policyholder Account Balance [Line Items]    
Range of Guaranteed Minimum Crediting Rates 2.00% 2.00%
2.00% - 2.99% | Group Insurance - Life / Disability | Maximum    
Policyholder Account Balance [Line Items]    
Range of Guaranteed Minimum Crediting Rates 2.99% 2.99%
2.00% - 2.99% | Group Insurance - Life / Disability | At guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 38 $ 44
2.00% - 2.99% | Group Insurance - Life / Disability | 1 - 50 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 0 0
2.00% - 2.99% | Group Insurance - Life / Disability | 51 - 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 0 0
2.00% - 2.99% | Group Insurance - Life / Disability | Greater than 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 0 0
2.00% - 2.99% | Individual Life - Variable / Universal Life    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 773 $ 822
2.00% - 2.99% | Individual Life - Variable / Universal Life | Minimum    
Policyholder Account Balance [Line Items]    
Range of Guaranteed Minimum Crediting Rates 2.00% 2.00%
2.00% - 2.99% | Individual Life - Variable / Universal Life | Maximum    
Policyholder Account Balance [Line Items]    
Range of Guaranteed Minimum Crediting Rates 2.99% 2.99%
2.00% - 2.99% | Individual Life - Variable / Universal Life | At guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 224 $ 258
2.00% - 2.99% | Individual Life - Variable / Universal Life | 1 - 50 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 151 136
2.00% - 2.99% | Individual Life - Variable / Universal Life | 51 - 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 42 163
2.00% - 2.99% | Individual Life - Variable / Universal Life | Greater than 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 356 265
2.00% - 2.99% | U.S. Legacy Products - Annuities    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 482 $ 470
2.00% - 2.99% | U.S. Legacy Products - Annuities | Minimum    
Policyholder Account Balance [Line Items]    
Range of Guaranteed Minimum Crediting Rates 2.00% 2.00%
2.00% - 2.99% | U.S. Legacy Products - Annuities | Maximum    
Policyholder Account Balance [Line Items]    
Range of Guaranteed Minimum Crediting Rates 2.99% 2.99%
2.00% - 2.99% | U.S. Legacy Products - Annuities | At guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 443 $ 457
2.00% - 2.99% | U.S. Legacy Products - Annuities | 1 - 50 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 31 9
2.00% - 2.99% | U.S. Legacy Products - Annuities | 51 - 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 8 4
2.00% - 2.99% | U.S. Legacy Products - Annuities | Greater than 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 0 0
2.00% - 2.99% | U.S. Legacy Products - Guaranteed Universal Life    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 4,354 $ 4,196
2.00% - 2.99% | U.S. Legacy Products - Guaranteed Universal Life | Minimum    
Policyholder Account Balance [Line Items]    
Range of Guaranteed Minimum Crediting Rates 2.00% 2.00%
2.00% - 2.99% | U.S. Legacy Products - Guaranteed Universal Life | Maximum    
Policyholder Account Balance [Line Items]    
Range of Guaranteed Minimum Crediting Rates 2.99% 2.99%
2.00% - 2.99% | U.S. Legacy Products - Guaranteed Universal Life | At guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 27 $ 26
2.00% - 2.99% | U.S. Legacy Products - Guaranteed Universal Life | 1 - 50 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 0 1,429
2.00% - 2.99% | U.S. Legacy Products - Guaranteed Universal Life | 51 - 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 4,036 2,574
2.00% - 2.99% | U.S. Legacy Products - Guaranteed Universal Life | Greater than 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 291 167
2.00% - 2.99% | International Businesses    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 7,929 $ 8,232
2.00% - 2.99% | International Businesses | Minimum    
Policyholder Account Balance [Line Items]    
Range of Guaranteed Minimum Crediting Rates 2.00% 2.00%
2.00% - 2.99% | International Businesses | Maximum    
Policyholder Account Balance [Line Items]    
Range of Guaranteed Minimum Crediting Rates 2.99% 2.99%
2.00% - 2.99% | International Businesses | At guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 7,585 $ 7,926
2.00% - 2.99% | International Businesses | 1 - 50 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 277 280
2.00% - 2.99% | International Businesses | 51 - 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 67 26
2.00% - 2.99% | International Businesses | Greater than 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 0 0
3.00% - 4.00% | Retirement    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 6,200 $ 6,409
3.00% - 4.00% | Retirement | Minimum    
Policyholder Account Balance [Line Items]    
Range of Guaranteed Minimum Crediting Rates 3.00% 3.00%
3.00% - 4.00% | Retirement | Maximum    
Policyholder Account Balance [Line Items]    
Range of Guaranteed Minimum Crediting Rates 4.00% 4.00%
3.00% - 4.00% | Retirement | At guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 6,182 $ 6,389
3.00% - 4.00% | Retirement | 1 - 50 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 5 6
3.00% - 4.00% | Retirement | 51 - 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 11 11
3.00% - 4.00% | Retirement | Greater than 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 2 3
3.00% - 4.00% | Group Insurance - Life / Disability    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 1,482 $ 1,506
3.00% - 4.00% | Group Insurance - Life / Disability | Minimum    
Policyholder Account Balance [Line Items]    
Range of Guaranteed Minimum Crediting Rates 3.00% 3.00%
3.00% - 4.00% | Group Insurance - Life / Disability | Maximum    
Policyholder Account Balance [Line Items]    
Range of Guaranteed Minimum Crediting Rates 4.00% 4.00%
3.00% - 4.00% | Group Insurance - Life / Disability | At guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 1,400 $ 1,442
3.00% - 4.00% | Group Insurance - Life / Disability | 1 - 50 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 4 6
3.00% - 4.00% | Group Insurance - Life / Disability | 51 - 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 74 51
3.00% - 4.00% | Group Insurance - Life / Disability | Greater than 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 4 7
3.00% - 4.00% | Individual Life - Variable / Universal Life    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 3,631 $ 3,913
3.00% - 4.00% | Individual Life - Variable / Universal Life | Minimum    
Policyholder Account Balance [Line Items]    
Range of Guaranteed Minimum Crediting Rates 3.00% 3.00%
3.00% - 4.00% | Individual Life - Variable / Universal Life | Maximum    
Policyholder Account Balance [Line Items]    
Range of Guaranteed Minimum Crediting Rates 4.00% 4.00%
3.00% - 4.00% | Individual Life - Variable / Universal Life | At guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 2,057 $ 2,414
3.00% - 4.00% | Individual Life - Variable / Universal Life | 1 - 50 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 319 314
3.00% - 4.00% | Individual Life - Variable / Universal Life | 51 - 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 1,001 1,140
3.00% - 4.00% | Individual Life - Variable / Universal Life | Greater than 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 254 45
3.00% - 4.00% | U.S. Legacy Products - Annuities    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 1,625 $ 1,875
3.00% - 4.00% | U.S. Legacy Products - Annuities | Minimum    
Policyholder Account Balance [Line Items]    
Range of Guaranteed Minimum Crediting Rates 3.00% 3.00%
3.00% - 4.00% | U.S. Legacy Products - Annuities | Maximum    
Policyholder Account Balance [Line Items]    
Range of Guaranteed Minimum Crediting Rates 4.00% 4.00%
3.00% - 4.00% | U.S. Legacy Products - Annuities | At guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 1,595 $ 1,842
3.00% - 4.00% | U.S. Legacy Products - Annuities | 1 - 50 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 22 24
3.00% - 4.00% | U.S. Legacy Products - Annuities | 51 - 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 8 9
3.00% - 4.00% | U.S. Legacy Products - Annuities | Greater than 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 0 0
3.00% - 4.00% | U.S. Legacy Products - Guaranteed Universal Life    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 4,678 $ 5,001
3.00% - 4.00% | U.S. Legacy Products - Guaranteed Universal Life | Minimum    
Policyholder Account Balance [Line Items]    
Range of Guaranteed Minimum Crediting Rates 3.00% 3.00%
3.00% - 4.00% | U.S. Legacy Products - Guaranteed Universal Life | Maximum    
Policyholder Account Balance [Line Items]    
Range of Guaranteed Minimum Crediting Rates 4.00% 4.00%
3.00% - 4.00% | U.S. Legacy Products - Guaranteed Universal Life | At guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 2,915 $ 3,197
3.00% - 4.00% | U.S. Legacy Products - Guaranteed Universal Life | 1 - 50 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 1,101 1,639
3.00% - 4.00% | U.S. Legacy Products - Guaranteed Universal Life | 51 - 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 662 165
3.00% - 4.00% | U.S. Legacy Products - Guaranteed Universal Life | Greater than 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 0 0
3.00% - 4.00% | International Businesses    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 10,652 $ 8,743
3.00% - 4.00% | International Businesses | Minimum    
Policyholder Account Balance [Line Items]    
Range of Guaranteed Minimum Crediting Rates 3.00% 3.00%
3.00% - 4.00% | International Businesses | Maximum    
Policyholder Account Balance [Line Items]    
Range of Guaranteed Minimum Crediting Rates 4.00% 4.00%
3.00% - 4.00% | International Businesses | At guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 10,652 $ 8,743
3.00% - 4.00% | International Businesses | 1 - 50 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 0 0
3.00% - 4.00% | International Businesses | 51 - 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 0 0
3.00% - 4.00% | International Businesses | Greater than 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 0 $ 0
Greater than 4.00% | Retirement    
Policyholder Account Balance [Line Items]    
Range of Guaranteed Minimum Crediting Rates 4.00% 4.00%
Account Values with Crediting Rates $ 7,359 $ 4,732
Greater than 4.00% | Retirement | At guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 7,359 4,732
Greater than 4.00% | Retirement | 1 - 50 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 0 0
Greater than 4.00% | Retirement | 51 - 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 0 0
Greater than 4.00% | Retirement | Greater than 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 0 $ 0
Greater than 4.00% | Group Insurance - Life / Disability    
Policyholder Account Balance [Line Items]    
Range of Guaranteed Minimum Crediting Rates 4.00% 4.00%
Account Values with Crediting Rates $ 3 $ 3
Greater than 4.00% | Group Insurance - Life / Disability | At guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 3 3
Greater than 4.00% | Group Insurance - Life / Disability | 1 - 50 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 0 0
Greater than 4.00% | Group Insurance - Life / Disability | 51 - 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 0 0
Greater than 4.00% | Group Insurance - Life / Disability | Greater than 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 0 $ 0
Greater than 4.00% | Individual Life - Variable / Universal Life    
Policyholder Account Balance [Line Items]    
Range of Guaranteed Minimum Crediting Rates 4.00% 4.00%
Account Values with Crediting Rates $ 4,765 $ 4,830
Greater than 4.00% | Individual Life - Variable / Universal Life | At guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 4,765 4,830
Greater than 4.00% | Individual Life - Variable / Universal Life | 1 - 50 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 0 0
Greater than 4.00% | Individual Life - Variable / Universal Life | 51 - 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 0 0
Greater than 4.00% | Individual Life - Variable / Universal Life | Greater than 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 0 $ 0
Greater than 4.00% | U.S. Legacy Products - Annuities    
Policyholder Account Balance [Line Items]    
Range of Guaranteed Minimum Crediting Rates 4.00% 4.00%
Account Values with Crediting Rates $ 134 $ 155
Greater than 4.00% | U.S. Legacy Products - Annuities | At guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 134 155
Greater than 4.00% | U.S. Legacy Products - Annuities | 1 - 50 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 0 0
Greater than 4.00% | U.S. Legacy Products - Annuities | 51 - 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 0 0
Greater than 4.00% | U.S. Legacy Products - Annuities | Greater than 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 0 $ 0
Greater than 4.00% | U.S. Legacy Products - Guaranteed Universal Life    
Policyholder Account Balance [Line Items]    
Range of Guaranteed Minimum Crediting Rates 4.00% 4.00%
Account Values with Crediting Rates $ 457 $ 472
Greater than 4.00% | U.S. Legacy Products - Guaranteed Universal Life | At guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 457 472
Greater than 4.00% | U.S. Legacy Products - Guaranteed Universal Life | 1 - 50 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 0 0
Greater than 4.00% | U.S. Legacy Products - Guaranteed Universal Life | 51 - 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 0 0
Greater than 4.00% | U.S. Legacy Products - Guaranteed Universal Life | Greater than 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 0 $ 0
Greater than 4.00% | International Businesses    
Policyholder Account Balance [Line Items]    
Range of Guaranteed Minimum Crediting Rates 4.00% 4.00%
Account Values with Crediting Rates $ 21,009 $ 16,833
Greater than 4.00% | International Businesses | At guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 21,009 16,833
Greater than 4.00% | International Businesses | 1 - 50 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 0 0
Greater than 4.00% | International Businesses | 51 - 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 0 0
Greater than 4.00% | International Businesses | Greater than 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 0 $ 0