v3.25.2
Investments (Credit Quality Indicators) (Details) - USD ($)
$ in Millions
Jun. 30, 2025
Dec. 31, 2024
Financing Receivable, Credit Quality Indicator [Line Items]    
Recording investment gross of allowance for credit losses $ 63,520 $ 62,915
Commercial Mortgage Loans    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current Fiscal Year 3,592 7,705
One Years Prior 7,412 5,240
Two Years Prior 5,261 3,631
Three Years Prior 3,470 6,030
Four Years Prior 5,800 2,951
Prior 29,295 28,465
Revolving Loans 65 36
Recording investment gross of allowance for credit losses 54,895 54,058
Commercial Mortgage Loans | ≥ 1.2X    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current Fiscal Year 3,486 6,771
One Years Prior 6,485 4,563
Two Years Prior 4,569 3,283
Three Years Prior 3,182 5,929
Four Years Prior 5,700 2,795
Prior 26,331 25,790
Revolving Loans 0 0
Recording investment gross of allowance for credit losses 49,753 49,131
Commercial Mortgage Loans | 1.0 - 1.2x    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current Fiscal Year 106 745
One Years Prior 738 527
Two Years Prior 542 313
Three Years Prior 257 43
Four Years Prior 42 102
Prior 1,316 1,279
Revolving Loans 65 36
Recording investment gross of allowance for credit losses 3,066 3,045
Commercial Mortgage Loans | Less than 1.0x    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current Fiscal Year 0 189
One Years Prior 189 150
Two Years Prior 150 35
Three Years Prior 31 58
Four Years Prior 58 54
Prior 1,648 1,396
Revolving Loans 0 0
Recording investment gross of allowance for credit losses 2,076 1,882
Agricultural property loans    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current Fiscal Year 304 744
One Years Prior 769 932
Two Years Prior 856 1,523
Three Years Prior 1,403 2,020
Four Years Prior 2,009 803
Prior 2,249 1,579
Revolving Loans 172 174
Recording investment gross of allowance for credit losses 7,762 7,775
Agricultural property loans | ≥ 1.2X    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current Fiscal Year 304 688
One Years Prior 713 864
Two Years Prior 826 932
Three Years Prior 894 1,967
Four Years Prior 1,953 739
Prior 1,909 1,384
Revolving Loans 131 122
Recording investment gross of allowance for credit losses 6,730 6,696
Agricultural property loans | 1.0 - 1.2x    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current Fiscal Year 0 56
One Years Prior 52 63
Two Years Prior 25 530
Three Years Prior 451 45
Four Years Prior 42 23
Prior 203 98
Revolving Loans 41 52
Recording investment gross of allowance for credit losses 814 867
Agricultural property loans | Less than 1.0x    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current Fiscal Year 0 0
One Years Prior 4 5
Two Years Prior 5 61
Three Years Prior 58 8
Four Years Prior 14 41
Prior 137 97
Revolving Loans 0 0
Recording investment gross of allowance for credit losses 218 212
0%-59.99% | Commercial Mortgage Loans    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current Fiscal Year 1,541 2,122
One Years Prior 2,093 1,492
Two Years Prior 2,093 1,183
Three Years Prior 885 2,295
Four Years Prior 2,215 1,378
Prior 17,825 16,652
Revolving Loans 65 36
Recording investment gross of allowance for credit losses 26,717 25,158
0%-59.99% | Agricultural property loans    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current Fiscal Year 220 657
One Years Prior 658 371
Two Years Prior 297 877
Three Years Prior 901 2,004
Four Years Prior 1,993 679
Prior 2,048 1,491
Revolving Loans 131 122
Recording investment gross of allowance for credit losses 6,248 6,201
60%-69.99% | Commercial Mortgage Loans    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current Fiscal Year 1,773 4,726
One Years Prior 4,153 2,287
Two Years Prior 1,590 1,013
Three Years Prior 1,453 2,192
Four Years Prior 2,072 846
Prior 5,218 5,113
Revolving Loans 0 0
Recording investment gross of allowance for credit losses 16,259 16,177
60%-69.99% | Agricultural property loans    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current Fiscal Year 21 87
One Years Prior 111 555
Two Years Prior 360 125
Three Years Prior 89 10
Four Years Prior 10 53
Prior 86 43
Revolving Loans 0 0
Recording investment gross of allowance for credit losses 677 873
70%-79.99% | Commercial Mortgage Loans    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current Fiscal Year 266 809
One Years Prior 894 1,326
Two Years Prior 1,442 953
Three Years Prior 873 1,327
Four Years Prior 1,258 446
Prior 2,074 2,293
Revolving Loans 0 0
Recording investment gross of allowance for credit losses 6,807 7,154
70%-79.99% | Agricultural property loans    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current Fiscal Year 60 0
One Years Prior 0 0
Two Years Prior 0 0
Three Years Prior 0 6
Four Years Prior 6 0
Prior 14 3
Revolving Loans 0 0
Recording investment gross of allowance for credit losses 80 9
80% or greater | Commercial Mortgage Loans    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current Fiscal Year 12 48
One Years Prior 272 135
Two Years Prior 136 482
Three Years Prior 259 216
Four Years Prior 255 281
Prior 4,178 4,407
Revolving Loans 0 0
Recording investment gross of allowance for credit losses 5,112 5,569
80% or greater | Agricultural property loans    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current Fiscal Year 3 0
One Years Prior 0 6
Two Years Prior 199 521
Three Years Prior 413 0
Four Years Prior 0 71
Prior 101 42
Revolving Loans 41 52
Recording investment gross of allowance for credit losses $ 757 $ 692