v3.26.1
Investment Securities (Contractual Maturity of Securities) (Details) - USD ($)
$ in Millions
Mar. 31, 2026
Dec. 31, 2025
Total securities available-for-sale at amortized cost    
1 Year or Less $ 1,254  
After 1 Year through 5 Years 24,712  
After 5 Years through 10 Years 7,184  
After 10 Years 40,000  
Total 73,150 $ 69,897
Available-for-sale, fair value    
1 Year or Less 1,251  
After 1 Year through 5 Years 24,662  
After 5 Years through 10 Years 7,095  
After 10 Years 38,064  
Total $ 71,072 68,135
Weighted-average yield, GAAP basis, available for sale securities 3.87%  
Total securities held-to-maturity at amortized cost    
1 Year or Less $ 7,822  
After 1 Year through 5 Years 13,938  
After 5 Years through 10 Years 4,751  
After 10 Years 45,529  
Total 72,040 70,105
Held-to-maturity, fair value    
1 Year or Less 7,790  
After 1 Year through 5 Years 13,709  
After 5 Years through 10 Years 4,637  
After 10 Years 43,332  
Total $ 69,468 67,979
Weighted-average yield, GAAP basis, held to maturity securities 2.81%  
1 Year or Less    
Available-for-sale, fair value    
Weighted-average yield, GAAP basis, available for sale securities 3.19%  
Held-to-maturity, fair value    
Weighted-average yield, GAAP basis, held to maturity securities 1.27%  
After 1 Year through 5 Years    
Available-for-sale, fair value    
Weighted-average yield, GAAP basis, available for sale securities 3.98%  
Held-to-maturity, fair value    
Weighted-average yield, GAAP basis, held to maturity securities 2.42%  
After 5 Years through 10 Years    
Available-for-sale, fair value    
Weighted-average yield, GAAP basis, available for sale securities 3.81%  
Held-to-maturity, fair value    
Weighted-average yield, GAAP basis, held to maturity securities 2.70%  
After 10 Years    
Available-for-sale, fair value    
Weighted-average yield, GAAP basis, available for sale securities 3.83%  
Held-to-maturity, fair value    
Weighted-average yield, GAAP basis, held to maturity securities 3.20%  
U.S. Treasury and government agencies    
Total securities available-for-sale at amortized cost    
1 Year or Less $ 545  
After 1 Year through 5 Years 20,697  
After 5 Years through 10 Years 3,346  
After 10 Years 2,177  
Total 26,765 29,022
Available-for-sale, fair value    
Total 26,499 28,897
Total securities held-to-maturity at amortized cost    
1 Year or Less 7,737  
After 1 Year through 5 Years 9,569  
After 5 Years through 10 Years 742  
After 10 Years 832  
Total 18,880 21,537
Held-to-maturity, fair value    
Total 18,538 21,244
Residential mortgage-backed | Mortgage-backed Securities Agency    
Total securities available-for-sale at amortized cost    
1 Year or Less 1  
After 1 Year through 5 Years 428  
After 5 Years through 10 Years 2,858  
After 10 Years 34,275  
Total 37,562  
Total securities held-to-maturity at amortized cost    
1 Year or Less 0  
After 1 Year through 5 Years 4  
After 5 Years through 10 Years 2,594  
After 10 Years 41,910  
Total 44,508  
Residential mortgage-backed | Mortgage-backed Securities Non-agency    
Total securities available-for-sale at amortized cost    
1 Year or Less 0  
After 1 Year through 5 Years 0  
After 5 Years through 10 Years 160  
After 10 Years 270  
Total 430  
Total securities held-to-maturity at amortized cost    
1 Year or Less 0  
After 1 Year through 5 Years 0  
After 5 Years through 10 Years 0  
After 10 Years 219  
Total 219  
Commercial mortgage servicing rights | Mortgage-backed Securities Agency    
Total securities available-for-sale at amortized cost    
1 Year or Less 7  
After 1 Year through 5 Years 1,451  
After 5 Years through 10 Years 140  
After 10 Years 1,848  
Total 3,446  
Total securities held-to-maturity at amortized cost    
1 Year or Less 0  
After 1 Year through 5 Years 3,515  
After 5 Years through 10 Years 477  
After 10 Years 372  
Total 4,364  
Commercial mortgage servicing rights | Mortgage-backed Securities Non-agency    
Total securities available-for-sale at amortized cost    
1 Year or Less 0  
After 1 Year through 5 Years 79  
After 5 Years through 10 Years 55  
After 10 Years 95  
Total 229  
Total securities held-to-maturity at amortized cost    
1 Year or Less 0  
After 1 Year through 5 Years 0  
After 5 Years through 10 Years 0  
After 10 Years 223  
Total 223  
Asset-backed    
Total securities available-for-sale at amortized cost    
1 Year or Less 14  
After 1 Year through 5 Years 1,089  
After 5 Years through 10 Years 364  
After 10 Years 805  
Total 2,272  
Total securities held-to-maturity at amortized cost    
1 Year or Less 16  
After 1 Year through 5 Years 126  
After 5 Years through 10 Years 680  
After 10 Years 542  
Total 1,364  
Other    
Total securities available-for-sale at amortized cost    
1 Year or Less 687  
After 1 Year through 5 Years 968  
After 5 Years through 10 Years 261  
After 10 Years 530  
Total 2,446 2,106
Available-for-sale, fair value    
Total 2,440 2,106
Total securities held-to-maturity at amortized cost    
1 Year or Less 69  
After 1 Year through 5 Years 724  
After 5 Years through 10 Years 258  
After 10 Years 1,431  
Total 2,482 2,488
Held-to-maturity, fair value    
Total $ 2,461 $ 2,491