v3.25.4
Investment Securities - Schedule of Unrealized Loss Positions on Investment Securities (Details)
$ in Millions
Dec. 31, 2025
USD ($)
security
Dec. 31, 2024
USD ($)
security
Debt Securities, Available-for-sale [Line Items]    
Number of Debt Securities | security 599 609
Fair Value    
Less than Twelve Months $ 435 $ 1,674
Twelve Months or Longer 5,551 5,592
Total 5,986 7,266
Unrealized Loss    
Less than Twelve Months 1 3
Twelve Months or Longer 699 929
Total $ 700 $ 932
Debt Securities | U.S. Government and GSE Obligations    
Debt Securities, Available-for-sale [Line Items]    
Number of Debt Securities | security 33 33
Fair Value    
Less than Twelve Months $ 0 $ 0
Twelve Months or Longer 1,297 1,203
Total 1,297 1,203
Unrealized Loss    
Less than Twelve Months 0 0
Twelve Months or Longer 206 299
Total $ 206 $ 299
Debt Securities | GSE certificates    
Debt Securities, Available-for-sale [Line Items]    
Number of Debt Securities | security 324 328
Fair Value    
Less than Twelve Months $ 8 $ 38
Twelve Months or Longer 926 1,040
Total 934 1,078
Unrealized Loss    
Less than Twelve Months 0 0
Twelve Months or Longer 119 167
Total $ 119 $ 167
Debt Securities | GSE CMOs    
Debt Securities, Available-for-sale [Line Items]    
Number of Debt Securities | security 226 223
Fair Value    
Less than Twelve Months $ 427 $ 1,636
Twelve Months or Longer 2,993 2,822
Total 3,420 4,458
Unrealized Loss    
Less than Twelve Months 1 3
Twelve Months or Longer 359 444
Total $ 360 $ 447
Debt Securities | Asset-backed securities    
Debt Securities, Available-for-sale [Line Items]    
Number of Debt Securities | security 5 5
Fair Value    
Less than Twelve Months $ 0 $ 0
Twelve Months or Longer 152 154
Total 152 154
Unrealized Loss    
Less than Twelve Months 0 0
Twelve Months or Longer 4 2
Total $ 4 $ 2
Debt Securities | Municipal bonds    
Debt Securities, Available-for-sale [Line Items]    
Number of Debt Securities | security 1 1
Fair Value    
Less than Twelve Months $ 0 $ 0
Twelve Months or Longer 4 5
Total 4 5
Unrealized Loss    
Less than Twelve Months 0 0
Twelve Months or Longer 0 0
Total $ 0 $ 0
Debt Securities | Corporate bonds    
Debt Securities, Available-for-sale [Line Items]    
Number of Debt Securities | security 5 11
Fair Value    
Less than Twelve Months $ 0 $ 0
Twelve Months or Longer 144 308
Total 144 308
Unrealized Loss    
Less than Twelve Months 0 0
Twelve Months or Longer 3 6
Total $ 3 $ 6
Debt Securities | Private Label CMOs    
Debt Securities, Available-for-sale [Line Items]    
Number of Debt Securities | security   2
Fair Value    
Less than Twelve Months   $ 0
Twelve Months or Longer   17
Total   17
Unrealized Loss    
Less than Twelve Months   0
Twelve Months or Longer   1
Total   $ 1
Debt Securities | Foreign notes    
Debt Securities, Available-for-sale [Line Items]    
Number of Debt Securities | security   1
Fair Value    
Less than Twelve Months   $ 0
Twelve Months or Longer   10
Total   10
Unrealized Loss    
Less than Twelve Months   0
Twelve Months or Longer   0
Total   $ 0
Debt Securities | Capital trust notes    
Debt Securities, Available-for-sale [Line Items]    
Number of Debt Securities | security 5 5
Fair Value    
Less than Twelve Months $ 0 $ 0
Twelve Months or Longer 35 33
Total 35 33
Unrealized Loss    
Less than Twelve Months 0 0
Twelve Months or Longer 8 10
Total $ 8 $ 10