Quarterly report pursuant to Section 13 or 15(d)

Allowance for Credit Losses - Changes in Allowance by Portfolio Segment (Details)

v3.4.0.3
Allowance for Credit Losses - Changes in Allowance by Portfolio Segment (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Allowance for Loan and Lease Losses [Roll Forward]    
Allowance for loan and lease losses, beginning balance $ 12,234 $ 14,419
Loans and leases charged off (1,496) (1,645)
Recoveries of loans and leases previously charged off 428 451
Net charge-offs (1,068) (1,194)
Provision for loan and lease losses 1,016 756
Other (8) (17)
Allowance for loan and lease losses, ending balance 12,069 13,676
Provision for unfunded lending commitments 997 765
Reserve for unfunded lending commitments, ending balance 12,696 14,213
Unfunded loan commitments    
Allowance for Loan and Lease Losses [Roll Forward]    
Reserve for unfunded lending commitments, beginning balance 646 528
Provision for unfunded lending commitments (19) 9
Reserve for unfunded lending commitments, ending balance 627 537
Purchased Credit - impaired    
Allowance for Loan and Lease Losses [Roll Forward]    
Loans and leases charged off (105) (288)
Provision for loan and lease losses (77) (50)
Reserve for unfunded lending commitments, beginning balance 804  
Reserve for unfunded lending commitments, ending balance 622  
Consumer Real Estate    
Allowance for Loan and Lease Losses [Roll Forward]    
Allowance for loan and lease losses, beginning balance 3,914 5,935
Loans and leases charged off (378) (552)
Recoveries of loans and leases previously charged off 175 183
Net charge-offs (203) (369)
Provision for loan and lease losses (150) (28)
Other 0 0
Allowance for loan and lease losses, ending balance 3,456 5,250
Reserve for unfunded lending commitments, ending balance 3,456 5,250
Consumer Real Estate | Unfunded loan commitments    
Allowance for Loan and Lease Losses [Roll Forward]    
Reserve for unfunded lending commitments, beginning balance 0 0
Provision for unfunded lending commitments 0 0
Reserve for unfunded lending commitments, ending balance 0 0
Consumer Real Estate | Purchased Credit - impaired    
Allowance for Loan and Lease Losses [Roll Forward]    
Loans and leases charged off (105) (288)
Reserve for unfunded lending commitments, beginning balance 804  
Reserve for unfunded lending commitments, ending balance 622  
Credit Card and Other Consumer    
Allowance for Loan and Lease Losses [Roll Forward]    
Allowance for loan and lease losses, beginning balance 3,471 4,047
Loans and leases charged off (912) (964)
Recoveries of loans and leases previously charged off 198 216
Net charge-offs (714) (748)
Provision for loan and lease losses 552 647
Other (7) (17)
Allowance for loan and lease losses, ending balance 3,302 3,929
Reserve for unfunded lending commitments, ending balance 3,302 3,929
Credit Card and Other Consumer | Unfunded loan commitments    
Allowance for Loan and Lease Losses [Roll Forward]    
Reserve for unfunded lending commitments, beginning balance 0 0
Provision for unfunded lending commitments 0 0
Reserve for unfunded lending commitments, ending balance 0 0
Credit Card and Other Consumer | Purchased Credit - impaired    
Allowance for Loan and Lease Losses [Roll Forward]    
Loans and leases charged off 0 0
Commercial    
Allowance for Loan and Lease Losses [Roll Forward]    
Allowance for loan and lease losses, beginning balance 4,849 4,437
Loans and leases charged off (206) (129)
Recoveries of loans and leases previously charged off 55 52
Net charge-offs (151) (77)
Provision for loan and lease losses 614 137
Other (1) 0
Allowance for loan and lease losses, ending balance 5,311 4,497
Reserve for unfunded lending commitments, ending balance 5,938 5,034
Commercial | Unfunded loan commitments    
Allowance for Loan and Lease Losses [Roll Forward]    
Reserve for unfunded lending commitments, beginning balance 646 528
Provision for unfunded lending commitments (19) 9
Reserve for unfunded lending commitments, ending balance 627 537
Commercial | Purchased Credit - impaired    
Allowance for Loan and Lease Losses [Roll Forward]    
Loans and leases charged off $ 0 $ 0