v3.26.1
Investment Securities (Contractual Maturity of Securities) (Details) - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
Total securities available-for-sale at amortized cost    
1 Year or Less $ 1,023  
After 1 Year through 5 Years 28,515  
After 5 Years through 10 Years 5,015  
After 10 Years 38,654  
Total 73,207 $ 69,897
Available-for-sale, fair value    
1 Year or Less 1,018  
After 1 Year through 5 Years 28,436  
After 5 Years through 10 Years 4,952  
After 10 Years 36,694  
Total $ 71,100 68,135
Weighted-average yield, GAAP basis, available for sale securities 3.96%  
Total securities held-to-maturity at amortized cost    
1 Year or Less $ 7,586  
After 1 Year through 5 Years 14,111  
After 5 Years through 10 Years 5,569  
After 10 Years 51,140  
Total 78,406 70,105
Held-to-maturity, fair value    
1 Year or Less 7,567  
After 1 Year through 5 Years 13,800  
After 5 Years through 10 Years 5,332  
After 10 Years 48,823  
Total $ 75,522 67,979
Weighted-average yield, GAAP basis, held to maturity securities 3.02%  
1 Year or Less    
Available-for-sale, fair value    
Weighted-average yield, GAAP basis, available for sale securities 3.48%  
Held-to-maturity, fair value    
Weighted-average yield, GAAP basis, held to maturity securities 1.30%  
After 1 Year through 5 Years    
Available-for-sale, fair value    
Weighted-average yield, GAAP basis, available for sale securities 4.07%  
Held-to-maturity, fair value    
Weighted-average yield, GAAP basis, held to maturity securities 2.40%  
After 5 Years through 10 Years    
Available-for-sale, fair value    
Weighted-average yield, GAAP basis, available for sale securities 3.64%  
Held-to-maturity, fair value    
Weighted-average yield, GAAP basis, held to maturity securities 2.50%  
After 10 Years    
Available-for-sale, fair value    
Weighted-average yield, GAAP basis, available for sale securities 3.93%  
Held-to-maturity, fair value    
Weighted-average yield, GAAP basis, held to maturity securities 3.50%  
U.S. Treasury and government agencies    
Total securities available-for-sale at amortized cost    
1 Year or Less $ 497  
After 1 Year through 5 Years 24,352  
After 5 Years through 10 Years 1,665  
After 10 Years 2,290  
Total 28,804 29,022
Available-for-sale, fair value    
Total 28,525 28,897
Total securities held-to-maturity at amortized cost    
1 Year or Less 7,458  
After 1 Year through 5 Years 9,849  
After 5 Years through 10 Years 541  
After 10 Years 818  
Total 18,666 21,537
Held-to-maturity, fair value    
Total 18,283 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 426  
After 5 Years through 10 Years 2,432  
After 10 Years 32,935  
Total 35,794  
Total securities held-to-maturity at amortized cost    
1 Year or Less 0  
After 1 Year through 5 Years 14  
After 5 Years through 10 Years 3,767  
After 10 Years 47,513  
Total 51,294  
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 177  
After 10 Years 240  
Total 417  
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 213  
Total 213  
Commercial mortgage servicing rights | Mortgage-backed Securities Agency    
Total securities available-for-sale at amortized cost    
1 Year or Less 8  
After 1 Year through 5 Years 1,447  
After 5 Years through 10 Years 135  
After 10 Years 1,826  
Total 3,416  
Total securities held-to-maturity at amortized cost    
1 Year or Less 0  
After 1 Year through 5 Years 3,516  
After 5 Years through 10 Years 491  
After 10 Years 538  
Total 4,545  
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 26  
Total 160  
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 150  
Total 150  
Asset-backed    
Total securities available-for-sale at amortized cost    
1 Year or Less 5  
After 1 Year through 5 Years 1,399  
After 5 Years through 10 Years 295  
After 10 Years 822  
Total 2,521  
Total securities held-to-maturity at amortized cost    
1 Year or Less 14  
After 1 Year through 5 Years 97  
After 5 Years through 10 Years 520  
After 10 Years 499  
Total 1,130  
Other    
Total securities available-for-sale at amortized cost    
1 Year or Less 512  
After 1 Year through 5 Years 812  
After 5 Years through 10 Years 256  
After 10 Years 515  
Total 2,095 2,106
Available-for-sale, fair value    
Total 2,102 2,106
Total securities held-to-maturity at amortized cost    
1 Year or Less 114  
After 1 Year through 5 Years 635  
After 5 Years through 10 Years 250  
After 10 Years 1,409  
Total 2,408 2,488
Held-to-maturity, fair value    
Total $ 2,410 $ 2,491