v3.26.1
Bank Loans and Related Allowance for Credit Losses - Credit Quality Indicators of Bank Loan Portfolio (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Gross charge-offs          
Total loans $ 0 $ 0 $ 0 $ 0  
Total residential real estate          
Gross charge-offs          
Total loans 0 0 0 0  
Total residential real estate | First Mortgages          
Financing Receivable, Credit Quality Indicator [Line Items]          
2026 4,461   4,461    
2025 5,459   5,459   $ 6,029
2024 2,394   2,394   2,823
2023 1,586   1,586   1,796
2022 5,033   5,033   5,239
pre-2022 13,849   13,849   14,597
Total loans 32,782   32,782   30,484
Gross charge-offs          
2026     0    
2025     0   0
2024     0   0
2023     0   0
2022     0   0
pre-2022     0   0
Total loans $ 0 0 $ 0 0 $ 0
Percent of Loans on Nonaccrual Status          
2026 0.01%   0.01%    
2025 0.01%   0.01%   0.01%
2024 0.10%   0.10%   0.01%
2023 0.01%   0.01%   0.11%
2022 0.06%   0.06%   0.10%
pre-2022 0.05%   0.05%   0.20%
Total loans 0.04%   0.04%   0.12%
Total residential real estate | First Mortgages | Estimated Refreshed Loan To Value Ratio 70% and Below          
Financing Receivable, Credit Quality Indicator [Line Items]          
2026 $ 3,167   $ 3,167    
2025 3,855   3,855   $ 3,877
2024 1,825   1,825   1,989
2023 1,380   1,380   1,450
2022 4,652   4,652   4,696
pre-2022 13,783   13,783   14,483
Total loans 28,662   28,662   26,495
Total residential real estate | First Mortgages | Estimated Refreshed Loan To Value Ratio Greater Than 70% Through 90%          
Financing Receivable, Credit Quality Indicator [Line Items]          
2026 1,294   1,294    
2025 1,601   1,601   2,148
2024 566   566   829
2023 201   201   342
2022 352   352   537
pre-2022 64   64   114
Total loans 4,078   4,078   3,970
Total residential real estate | First Mortgages | Estimated Refreshed LTV Greater Than 90% Through 100%          
Financing Receivable, Credit Quality Indicator [Line Items]          
2026 0   0    
2025 3   3   4
2024 3   3   5
2023 5   5   4
2022 29   29   6
pre-2022 2   2   0
Total loans 42   42   19
Total residential real estate | First Mortgages | Updated FICO Score Below 620          
Financing Receivable, Credit Quality Indicator [Line Items]          
2026 1   1    
2025 5   5   8
2024 3   3   4
2023 5   5   3
2022 24   24   36
pre-2022 42   42   55
Total loans 80   80   106
Total residential real estate | First Mortgages | Updated FICO Score 620 Through 679          
Financing Receivable, Credit Quality Indicator [Line Items]          
2026 32   32    
2025 58   58   59
2024 22   22   31
2023 25   25   25
2022 61   61   61
pre-2022 167   167   140
Total loans 365   365   316
Total residential real estate | First Mortgages | Updated FICO Score 680 Through 739          
Financing Receivable, Credit Quality Indicator [Line Items]          
2026 384   384    
2025 475   475   570
2024 216   216   227
2023 142   142   153
2022 453   453   483
pre-2022 1,091   1,091   1,157
Total loans 2,761   2,761   2,590
Total residential real estate | First Mortgages | Updated FICO Score 740 and Above          
Financing Receivable, Credit Quality Indicator [Line Items]          
2026 4,044   4,044    
2025 4,921   4,921   5,392
2024 2,153   2,153   2,561
2023 1,414   1,414   1,615
2022 4,495   4,495   4,659
pre-2022 12,549   12,549   13,245
Total loans 29,576   29,576   27,472
Total residential real estate | First Mortgages | Financial Asset Originated          
Financing Receivable, Credit Quality Indicator [Line Items]          
2026 4,461   4,461    
2025 5,459   5,459   6,029
2024 2,394   2,394   2,823
2023 1,586   1,586   1,796
2022 5,033   5,033   5,239
pre-2022 13,849   13,849   14,597
Total loans 32,782   32,782   30,484
Total residential real estate | First Mortgages | Financial Asset Originated | Origination Loan to Value Ratio 70% and Below          
Financing Receivable, Credit Quality Indicator [Line Items]          
2026 3,166   3,166    
2025 3,715   3,715   4,105
2024 1,615   1,615   1,925
2023 1,082   1,082   1,216
2022 3,747   3,747   3,891
pre-2022 11,853   11,853   12,473
Total loans 25,178   25,178   23,610
Total residential real estate | First Mortgages | Financial Asset Originated | Origination Loan to Value Ratio Greater Than 70% Through 90%          
Financing Receivable, Credit Quality Indicator [Line Items]          
2026 1,295   1,295    
2025 1,744   1,744   1,924
2024 779   779   898
2023 504   504   580
2022 1,286   1,286   1,348
pre-2022 1,995   1,995   2,123
Total loans 7,603   7,603   6,873
Total residential real estate | First Mortgages | Financial Asset Originated | Origination Loan to Value Ratio Greater Than 90% Through 100%          
Financing Receivable, Credit Quality Indicator [Line Items]          
2026 0   0    
2025 0   0   0
2024 0   0   0
2023 0   0   0
2022 0   0   0
pre-2022 1   1   1
Total loans 1   1   1
Total residential real estate | First Mortgages | Financial Asset Originated | Origination FICO Score Below 620          
Financing Receivable, Credit Quality Indicator [Line Items]          
2026 1   1    
2025 0   0   0
2024 1   1   1
2023 0   0   0
2022 2   2   3
pre-2022 2   2   2
Total loans 6   6   6
Total residential real estate | First Mortgages | Financial Asset Originated | Origination FICO Score 620 Through 679          
Financing Receivable, Credit Quality Indicator [Line Items]          
2026 30   30    
2025 18   18   23
2024 12   12   16
2023 3   3   4
2022 22   22   23
pre-2022 44   44   49
Total loans 129   129   115
Total residential real estate | First Mortgages | Financial Asset Originated | Origination FICO Score 680 Through 739          
Financing Receivable, Credit Quality Indicator [Line Items]          
2026 362   362    
2025 496   496   526
2024 242   242   272
2023 194   194   219
2022 639   639   667
pre-2022 1,424   1,424   1,508
Total loans 3,357   3,357   3,192
Total residential real estate | First Mortgages | Financial Asset Originated | Origination FICO Score 740 and Above          
Financing Receivable, Credit Quality Indicator [Line Items]          
2026 4,068   4,068    
2025 4,945   4,945   5,480
2024 2,139   2,139   2,534
2023 1,389   1,389   1,573
2022 4,370   4,370   4,546
pre-2022 12,379   12,379   13,038
Total loans 29,290   29,290   27,171
Total residential real estate | HELOCs          
Financing Receivable, Credit Quality Indicator [Line Items]          
Revolving HELOCs amortized cost basis 318   318   312
HELOCs converted to term loans 105   105   115
Total loans 423   423   427
Gross charge-offs          
Revolving HELOCs amortized cost basis     0   0
HELOCs converted to term loans     0   0
Total loans $ 0 $ 0 $ 0 $ 0 $ 0
Percent of Loans on Nonaccrual Status          
Revolving HELOCs amortized cost basis 0.00%   0.00%   0.16%
HELOCs converted to term loans 2.12%   2.12%   1.80%
Total loans 0.47%   0.47%   0.70%
Total residential real estate | HELOCs | Estimated Refreshed Loan To Value Ratio 70% and Below          
Financing Receivable, Credit Quality Indicator [Line Items]          
Revolving HELOCs amortized cost basis $ 316   $ 316   $ 310
HELOCs converted to term loans 105   105   115
Total loans 421   421   425
Total residential real estate | HELOCs | Estimated Refreshed Loan To Value Ratio Greater Than 70% Through 90%          
Financing Receivable, Credit Quality Indicator [Line Items]          
Revolving HELOCs amortized cost basis 2   2   2
HELOCs converted to term loans 0   0   0
Total loans 2   2   2
Total residential real estate | HELOCs | Estimated Refreshed LTV Greater Than 90% Through 100%          
Financing Receivable, Credit Quality Indicator [Line Items]          
Revolving HELOCs amortized cost basis 0   0   0
HELOCs converted to term loans 0   0   0
Total loans 0   0   0
Total residential real estate | HELOCs | Updated FICO Score Below 620          
Financing Receivable, Credit Quality Indicator [Line Items]          
Revolving HELOCs amortized cost basis 2   2   3
HELOCs converted to term loans 4   4   3
Total loans 6   6   6
Total residential real estate | HELOCs | Updated FICO Score 620 Through 679          
Financing Receivable, Credit Quality Indicator [Line Items]          
Revolving HELOCs amortized cost basis 9   9   5
HELOCs converted to term loans 7   7   6
Total loans 16   16   11
Total residential real estate | HELOCs | Updated FICO Score 680 Through 739          
Financing Receivable, Credit Quality Indicator [Line Items]          
Revolving HELOCs amortized cost basis 43   43   48
HELOCs converted to term loans 15   15   20
Total loans 58   58   68
Total residential real estate | HELOCs | Updated FICO Score 740 and Above          
Financing Receivable, Credit Quality Indicator [Line Items]          
Revolving HELOCs amortized cost basis 264   264   256
HELOCs converted to term loans 79   79   86
Total loans 343   343   342
Total residential real estate | HELOCs | Financial Asset Originated          
Financing Receivable, Credit Quality Indicator [Line Items]          
Revolving HELOCs amortized cost basis 318   318   312
HELOCs converted to term loans 105   105   115
Total loans 423   423   427
Total residential real estate | HELOCs | Financial Asset Originated | Origination Loan to Value Ratio 70% and Below          
Financing Receivable, Credit Quality Indicator [Line Items]          
Revolving HELOCs amortized cost basis 304   304   296
HELOCs converted to term loans 74   74   80
Total loans 378   378   376
Total residential real estate | HELOCs | Financial Asset Originated | Origination Loan to Value Ratio Greater Than 70% Through 90%          
Financing Receivable, Credit Quality Indicator [Line Items]          
Revolving HELOCs amortized cost basis 14   14   16
HELOCs converted to term loans 30   30   34
Total loans 44   44   50
Total residential real estate | HELOCs | Financial Asset Originated | Origination Loan to Value Ratio Greater Than 90% Through 100%          
Financing Receivable, Credit Quality Indicator [Line Items]          
Revolving HELOCs amortized cost basis 0   0   0
HELOCs converted to term loans 1   1   1
Total loans 1   1   1
Total residential real estate | HELOCs | Financial Asset Originated | Origination FICO Score Below 620          
Financing Receivable, Credit Quality Indicator [Line Items]          
Revolving HELOCs amortized cost basis 0   0   0
HELOCs converted to term loans 0   0   0
Total loans 0   0   0
Total residential real estate | HELOCs | Financial Asset Originated | Origination FICO Score 620 Through 679          
Financing Receivable, Credit Quality Indicator [Line Items]          
Revolving HELOCs amortized cost basis 2   2   0
HELOCs converted to term loans 1   1   1
Total loans 3   3   1
Total residential real estate | HELOCs | Financial Asset Originated | Origination FICO Score 680 Through 739          
Financing Receivable, Credit Quality Indicator [Line Items]          
Revolving HELOCs amortized cost basis 51   51   52
HELOCs converted to term loans 23   23   24
Total loans 74   74   76
Total residential real estate | HELOCs | Financial Asset Originated | Origination FICO Score 740 and Above          
Financing Receivable, Credit Quality Indicator [Line Items]          
Revolving HELOCs amortized cost basis 265   265   260
HELOCs converted to term loans 81   81   90
Total loans $ 346   $ 346   $ 350