v3.26.1
Investment Securities - Fair Value and Gross Unrealized Losses by Aging Category (Details) - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
Available-for-sale securities    
Less than 12 months, Fair value $ 32,009 $ 16,015
Less than 12 months, Gross unrealized losses 233 219
12 months or more, Fair Value 14,380 16,030
12 months or more, Gross unrealized losses 676 876
Total fair value 46,389 32,045
Total gross unrealized losses 909 1,095
Total mortgage-backed securities    
Available-for-sale securities    
Less than 12 months, Fair value 3,256 181
Less than 12 months, Gross unrealized losses 13 1
12 months or more, Fair Value 977 1,205
12 months or more, Gross unrealized losses 43 46
Total fair value 4,233 1,386
Total gross unrealized losses 56 47
U.S. GSEs and government agencies mortgage-backed securities    
Available-for-sale securities    
Total fair value 3,700 2,200
Residential: U.S. Mortgage-backed securities    
Available-for-sale securities    
Less than 12 months, Fair value 2,599 36
Less than 12 months, Gross unrealized losses 11 0
12 months or more, Fair Value 539 609
12 months or more, Gross unrealized losses 20 17
Total fair value 3,138 645
Total gross unrealized losses 31 17
Residential: Non-U.S. mortgage-backed securities    
Available-for-sale securities    
Less than 12 months, Fair value 27 3
Less than 12 months, Gross unrealized losses 0 0
12 months or more, Fair Value 18 20
12 months or more, Gross unrealized losses 0 0
Total fair value 45 23
Total gross unrealized losses 0 0
Commercial mortgage-backed securities    
Available-for-sale securities    
Less than 12 months, Fair value 630 142
Less than 12 months, Gross unrealized losses 2 1
12 months or more, Fair Value 420 576
12 months or more, Gross unrealized losses 23 29
Total fair value 1,050 718
Total gross unrealized losses 25 30
Obligations of U.S. states and municipalities    
Available-for-sale securities    
Less than 12 months, Fair value 1,797 5,519
Less than 12 months, Gross unrealized losses 33 131
12 months or more, Fair Value 8,719 9,597
12 months or more, Gross unrealized losses 488 662
Total fair value 10,516 15,116
Total gross unrealized losses 521 793
Non-U.S. government debt securities    
Available-for-sale securities    
Less than 12 months, Fair value 25,424 9,324
Less than 12 months, Gross unrealized losses 177 76
12 months or more, Fair Value 4,525 4,954
12 months or more, Gross unrealized losses 139 160
Total fair value 29,949 14,278
Total gross unrealized losses 316 236
Corporate debt securities    
Available-for-sale securities    
Less than 12 months, Fair value 123 114
Less than 12 months, Gross unrealized losses 7 11
12 months or more, Fair Value 0 0
12 months or more, Gross unrealized losses 0 0
Total fair value 123 114
Total gross unrealized losses 7 11
Asset-backed securities: Collateralized loan obligations    
Available-for-sale securities    
Less than 12 months, Fair value 1,223 814
Less than 12 months, Gross unrealized losses 1 0
12 months or more, Fair Value 46 143
12 months or more, Gross unrealized losses 0 1
Total fair value 1,269 957
Total gross unrealized losses 1 1
Asset-backed securities: Other    
Available-for-sale securities    
Less than 12 months, Fair value 186 63
Less than 12 months, Gross unrealized losses 2 0
12 months or more, Fair Value 113 131
12 months or more, Gross unrealized losses 6 7
Total fair value 299 194
Total gross unrealized losses $ 8 $ 7