v3.26.1
Policyholders' Account Balances (Guaranteed Minimum Crediting Rate) (Details)
$ in Millions
Mar. 31, 2026
USD ($)
Mar. 31, 2025
USD ($)
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 192,131 $ 170,278
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 $ 19,788 $ 14,579
Retirement | At guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 15,312 12,161
Retirement | 1 - 50 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 1,787 524
Retirement | 51 - 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 826 744
Retirement | Greater than 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 1,863 1,150
Group Insurance    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 2,366 2,362
Group Insurance | At guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 1,469 1,501
Group Insurance | 1 - 50 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 5 0
Group Insurance | 51 - 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 73 50
Group Insurance | Greater than 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 819 811
Variable Universal Life    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 10,763 11,031
Variable Universal Life | At guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 7,599 8,132
Variable Universal Life | 1 - 50 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 757 208
Variable Universal Life | 51 - 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 1,466 1,661
Variable Universal Life | Greater than 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 941 1,030
Annuities    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 3,857 4,239
Annuities | At guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 2,659 2,821
Annuities | 1 - 50 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 662 763
Annuities | 51 - 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 528 655
Annuities | Greater than 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 8 0
Guaranteed Universal Life    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 12,772 12,689
Guaranteed Universal Life | At guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 3,496 3,793
Guaranteed Universal Life | 1 - 50 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 1,109 3,063
Guaranteed Universal Life | 51 - 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 4,700 4,477
Guaranteed Universal Life | Greater than 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 3,467 1,356
International Businesses    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 55,943 51,965
International Businesses | At guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 55,536 48,237
International Businesses | 1 - 50 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 378 341
International Businesses | 51 - 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 29 105
International Businesses | Greater than 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 0 $ 3,282
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 $ 2,058 $ 1,519
Less than 1.00% | Retirement | At guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 221 441
Less than 1.00% | Retirement | 1 - 50 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 8 3
Less than 1.00% | Retirement | 51 - 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 21 13
Less than 1.00% | Retirement | Greater than 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 1,808 $ 1,062
Less than 1.00% | Group Insurance    
Policyholder Account Balance [Line Items]    
Range of Guaranteed Minimum Crediting Rates 1.00% 1.00%
Account Values with Crediting Rates $ 813 $ 800
Less than 1.00% | Group Insurance | At guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 0 0
Less than 1.00% | Group Insurance | 1 - 50 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 0 0
Less than 1.00% | Group Insurance | 51 - 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 0 0
Less than 1.00% | Group Insurance | Greater than 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 813 $ 800
Less than 1.00% | Variable Universal Life    
Policyholder Account Balance [Line Items]    
Range of Guaranteed Minimum Crediting Rates 1.00% 1.00%
Account Values with Crediting Rates $ 361 $ 347
Less than 1.00% | Variable Universal Life | At guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 0 0
Less than 1.00% | 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% | Variable Universal Life | 51 - 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 361 0
Less than 1.00% | Variable Universal Life | Greater than 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 0 $ 347
Less than 1.00% | Annuities    
Policyholder Account Balance [Line Items]    
Range of Guaranteed Minimum Crediting Rates 1.00% 1.00%
Account Values with Crediting Rates $ 794 $ 1,132
Less than 1.00% | Annuities | At guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 237 191
Less than 1.00% | Annuities | 1 - 50 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 77 337
Less than 1.00% | Annuities | 51 - 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 472 604
Less than 1.00% | Annuities | Greater than 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 8 $ 0
Less than 1.00% | 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% | Guaranteed Universal Life | At guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 0 0
Less than 1.00% | 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% | 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% | 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 $ 3,563 $ 19,766
Less than 1.00% | International Businesses | At guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 3,540 16,363
Less than 1.00% | International Businesses | 1 - 50 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 23 43
Less than 1.00% | International Businesses | 51 - 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 0 78
Less than 1.00% | International Businesses | Greater than 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 0 3,282
1.00% - 1.99% | Retirement    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 2,081 $ 2,257
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 $ 1,841 $ 1,961
1.00% - 1.99% | Retirement | 1 - 50 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 36 59
1.00% - 1.99% | Retirement | 51 - 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 158 167
1.00% - 1.99% | Retirement | Greater than 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 46 70
1.00% - 1.99% | Group Insurance    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 6 $ 2
1.00% - 1.99% | Group Insurance | Minimum    
Policyholder Account Balance [Line Items]    
Range of Guaranteed Minimum Crediting Rates 1.00% 1.00%
1.00% - 1.99% | Group Insurance | Maximum    
Policyholder Account Balance [Line Items]    
Range of Guaranteed Minimum Crediting Rates 1.99% 1.99%
1.00% - 1.99% | Group Insurance | At guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 4 $ 0
1.00% - 1.99% | Group Insurance | 1 - 50 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 0 0
1.00% - 1.99% | Group Insurance | 51 - 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 0 0
1.00% - 1.99% | Group Insurance | Greater than 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 2 2
1.00% - 1.99% | Variable Universal Life    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 1,165 $ 1,041
1.00% - 1.99% | Variable Universal Life | Minimum    
Policyholder Account Balance [Line Items]    
Range of Guaranteed Minimum Crediting Rates 1.00% 1.00%
1.00% - 1.99% | Variable Universal Life | Maximum    
Policyholder Account Balance [Line Items]    
Range of Guaranteed Minimum Crediting Rates 1.99% 1.99%
1.00% - 1.99% | Variable Universal Life | At guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 475 $ 295
1.00% - 1.99% | Variable Universal Life | 1 - 50 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 283 0
1.00% - 1.99% | Variable Universal Life | 51 - 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 0 359
1.00% - 1.99% | Variable Universal Life | Greater than 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 407 387
1.00% - 1.99% | Annuities    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 727 $ 540
1.00% - 1.99% | Annuities | Minimum    
Policyholder Account Balance [Line Items]    
Range of Guaranteed Minimum Crediting Rates 1.00% 1.00%
1.00% - 1.99% | Annuities | Maximum    
Policyholder Account Balance [Line Items]    
Range of Guaranteed Minimum Crediting Rates 1.99% 1.99%
1.00% - 1.99% | Annuities | At guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 136 $ 137
1.00% - 1.99% | Annuities | 1 - 50 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 550 364
1.00% - 1.99% | Annuities | 51 - 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 41 39
1.00% - 1.99% | Annuities | Greater than 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 0 0
1.00% - 1.99% | Guaranteed Universal Life    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 3,196 $ 2,929
1.00% - 1.99% | Guaranteed Universal Life | Minimum    
Policyholder Account Balance [Line Items]    
Range of Guaranteed Minimum Crediting Rates 1.00% 1.00%
1.00% - 1.99% | Guaranteed Universal Life | Maximum    
Policyholder Account Balance [Line Items]    
Range of Guaranteed Minimum Crediting Rates 1.99% 1.99%
1.00% - 1.99% | Guaranteed Universal Life | At guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 18 $ 15
1.00% - 1.99% | 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% | Guaranteed Universal Life | 51 - 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 0 1,723
1.00% - 1.99% | Guaranteed Universal Life | Greater than 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 3,178 1,191
1.00% - 1.99% | International Businesses    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 14,243 $ 10,755
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 $ 14,165 $ 10,725
1.00% - 1.99% | International Businesses | 1 - 50 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 78 30
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 $ 2,563 $ 1,201
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 $ 177
2.00% - 2.99% | Retirement | 1 - 50 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 1,738 456
2.00% - 2.99% | Retirement | 51 - 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 635 553
2.00% - 2.99% | Retirement | Greater than 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 6 15
2.00% - 2.99% | Group Insurance    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 39 $ 45
2.00% - 2.99% | Group Insurance | Minimum    
Policyholder Account Balance [Line Items]    
Range of Guaranteed Minimum Crediting Rates 2.00% 2.00%
2.00% - 2.99% | Group Insurance | Maximum    
Policyholder Account Balance [Line Items]    
Range of Guaranteed Minimum Crediting Rates 2.99% 2.99%
2.00% - 2.99% | Group Insurance | At guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 39 $ 45
2.00% - 2.99% | Group Insurance | 1 - 50 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 0 0
2.00% - 2.99% | Group Insurance | 51 - 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 0 0
2.00% - 2.99% | Group Insurance | Greater than 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 0 0
2.00% - 2.99% | Variable Universal Life    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 775 $ 821
2.00% - 2.99% | Variable Universal Life | Minimum    
Policyholder Account Balance [Line Items]    
Range of Guaranteed Minimum Crediting Rates 2.00% 2.00%
2.00% - 2.99% | Variable Universal Life | Maximum    
Policyholder Account Balance [Line Items]    
Range of Guaranteed Minimum Crediting Rates 2.99% 2.99%
2.00% - 2.99% | Variable Universal Life | At guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 232 $ 272
2.00% - 2.99% | Variable Universal Life | 1 - 50 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 145 132
2.00% - 2.99% | Variable Universal Life | 51 - 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 116 162
2.00% - 2.99% | Variable Universal Life | Greater than 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 282 255
2.00% - 2.99% | Annuities    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 473 $ 471
2.00% - 2.99% | Annuities | Minimum    
Policyholder Account Balance [Line Items]    
Range of Guaranteed Minimum Crediting Rates 2.00% 2.00%
2.00% - 2.99% | Annuities | Maximum    
Policyholder Account Balance [Line Items]    
Range of Guaranteed Minimum Crediting Rates 2.99% 2.99%
2.00% - 2.99% | Annuities | At guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 447 $ 458
2.00% - 2.99% | Annuities | 1 - 50 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 19 9
2.00% - 2.99% | Annuities | 51 - 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 7 4
2.00% - 2.99% | Annuities | Greater than 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 0 0
2.00% - 2.99% | Guaranteed Universal Life    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 4,353 $ 4,190
2.00% - 2.99% | Guaranteed Universal Life | Minimum    
Policyholder Account Balance [Line Items]    
Range of Guaranteed Minimum Crediting Rates 2.00% 2.00%
2.00% - 2.99% | Guaranteed Universal Life | Maximum    
Policyholder Account Balance [Line Items]    
Range of Guaranteed Minimum Crediting Rates 2.99% 2.99%
2.00% - 2.99% | Guaranteed Universal Life | At guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 27 $ 26
2.00% - 2.99% | Guaranteed Universal Life | 1 - 50 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 0 1,415
2.00% - 2.99% | Guaranteed Universal Life | 51 - 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 4,037 2,584
2.00% - 2.99% | Guaranteed Universal Life | Greater than 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 289 165
2.00% - 2.99% | International Businesses    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 7,996 $ 4,910
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 $ 7,690 $ 4,615
2.00% - 2.99% | International Businesses | 1 - 50 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 277 268
2.00% - 2.99% | International Businesses | 51 - 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 29 27
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 $ 6,268 $ 6,364
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 $ 6,248 $ 6,344
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 12 11
3.00% - 4.00% | Retirement | Greater than 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 3 3
3.00% - 4.00% | Group Insurance    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 1,505 $ 1,512
3.00% - 4.00% | Group Insurance | Minimum    
Policyholder Account Balance [Line Items]    
Range of Guaranteed Minimum Crediting Rates 3.00% 3.00%
3.00% - 4.00% | Group Insurance | Maximum    
Policyholder Account Balance [Line Items]    
Range of Guaranteed Minimum Crediting Rates 4.00% 4.00%
3.00% - 4.00% | Group Insurance | At guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 1,423 $ 1,453
3.00% - 4.00% | Group Insurance | 1 - 50 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 5 0
3.00% - 4.00% | Group Insurance | 51 - 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 73 50
3.00% - 4.00% | Group Insurance | Greater than 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 4 9
3.00% - 4.00% | Variable Universal Life    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 3,671 $ 3,964
3.00% - 4.00% | Variable Universal Life | Minimum    
Policyholder Account Balance [Line Items]    
Range of Guaranteed Minimum Crediting Rates 3.00% 3.00%
3.00% - 4.00% | Variable Universal Life | Maximum    
Policyholder Account Balance [Line Items]    
Range of Guaranteed Minimum Crediting Rates 4.00% 4.00%
3.00% - 4.00% | Variable Universal Life | At guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 2,101 $ 2,707
3.00% - 4.00% | Variable Universal Life | 1 - 50 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 329 76
3.00% - 4.00% | Variable Universal Life | 51 - 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 989 1,140
3.00% - 4.00% | Variable Universal Life | Greater than 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 252 41
3.00% - 4.00% | Annuities    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 1,723 $ 1,934
3.00% - 4.00% | Annuities | Minimum    
Policyholder Account Balance [Line Items]    
Range of Guaranteed Minimum Crediting Rates 3.00% 3.00%
3.00% - 4.00% | Annuities | Maximum    
Policyholder Account Balance [Line Items]    
Range of Guaranteed Minimum Crediting Rates 4.00% 4.00%
3.00% - 4.00% | Annuities | At guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 1,699 $ 1,873
3.00% - 4.00% | Annuities | 1 - 50 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 16 53
3.00% - 4.00% | Annuities | 51 - 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 8 8
3.00% - 4.00% | Annuities | Greater than 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 0 0
3.00% - 4.00% | Guaranteed Universal Life    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 4,761 $ 5,085
3.00% - 4.00% | Guaranteed Universal Life | Minimum    
Policyholder Account Balance [Line Items]    
Range of Guaranteed Minimum Crediting Rates 3.00% 3.00%
3.00% - 4.00% | Guaranteed Universal Life | Maximum    
Policyholder Account Balance [Line Items]    
Range of Guaranteed Minimum Crediting Rates 4.00% 4.00%
3.00% - 4.00% | Guaranteed Universal Life | At guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 2,989 $ 3,267
3.00% - 4.00% | Guaranteed Universal Life | 1 - 50 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 1,109 1,648
3.00% - 4.00% | Guaranteed Universal Life | 51 - 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 663 170
3.00% - 4.00% | 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 $ 10,607 $ 6,807
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 $ 10,607 $ 6,807
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 $ 6,818 $ 3,238
Greater than 4.00% | Retirement | At guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 6,818 3,238
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    
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 | At guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 3 3
Greater than 4.00% | Group Insurance | 1 - 50 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 0 0
Greater than 4.00% | Group Insurance | 51 - 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 0 0
Greater than 4.00% | Group Insurance | Greater than 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 0 $ 0
Greater than 4.00% | Variable Universal Life    
Policyholder Account Balance [Line Items]    
Range of Guaranteed Minimum Crediting Rates 4.00% 4.00%
Account Values with Crediting Rates $ 4,791 $ 4,858
Greater than 4.00% | Variable Universal Life | At guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 4,791 4,858
Greater than 4.00% | 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% | 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% | 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% | Annuities    
Policyholder Account Balance [Line Items]    
Range of Guaranteed Minimum Crediting Rates 4.00% 4.00%
Account Values with Crediting Rates $ 140 $ 162
Greater than 4.00% | Annuities | At guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 140 162
Greater than 4.00% | Annuities | 1 - 50 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 0 0
Greater than 4.00% | Annuities | 51 - 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 0 0
Greater than 4.00% | Annuities | Greater than 150 bps above guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates $ 0 $ 0
Greater than 4.00% | Guaranteed Universal Life    
Policyholder Account Balance [Line Items]    
Range of Guaranteed Minimum Crediting Rates 4.00% 4.00%
Account Values with Crediting Rates $ 462 $ 485
Greater than 4.00% | Guaranteed Universal Life | At guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 462 485
Greater than 4.00% | 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% | 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% | 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 $ 19,534 $ 9,727
Greater than 4.00% | International Businesses | At guaranteed minimum    
Policyholder Account Balance [Line Items]    
Account Values with Crediting Rates 19,534 9,727
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