Quarterly report pursuant to Section 13 or 15(d)

Outstanding Loans and Leases - Consumer Real Estate - TDRs Entered into During the Period (Details)

v3.8.0.1
Outstanding Loans and Leases - Consumer Real Estate - TDRs Entered into During the Period (Details) - Consumer real estate - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Sep. 30, 2017
Sep. 30, 2016
Financing Receivable, Modifications [Line Items]        
Unpaid Principal Balance $ 506,000,000 $ 779,000,000 $ 1,368,000,000 $ 1,757,000,000
Carrying Value $ 435,000,000 $ 668,000,000 $ 1,148,000,000 $ 1,494,000,000
Pre-Mod Interest Rate 4.25% 4.87% 4.33% 4.47%
Post-Mod Interest Rate 4.17% 4.10% 3.90% 3.71%
Net Charge-offs $ 17,000,000 $ 21,000,000 $ 37,000,000 $ 52,000,000
Residential Mortgage        
Financing Receivable, Modifications [Line Items]        
Unpaid Principal Balance 294,000,000 487,000,000 738,000,000 1,039,000,000
Carrying Value $ 263,000,000 $ 445,000,000 $ 657,000,000 $ 942,000,000
Pre-Mod Interest Rate 4.42% 4.83% 4.49% 4.77%
Post-Mod Interest Rate 4.33% 4.51% 4.25% 4.29%
Net Charge-offs $ 2,000,000 $ 4,000,000 $ 5,000,000 $ 9,000,000
Principal forgiveness   1,000,000 0 12,000,000
Home equity lines of credit        
Financing Receivable, Modifications [Line Items]        
Unpaid Principal Balance 212,000,000 292,000,000 630,000,000 718,000,000
Carrying Value $ 172,000,000 $ 223,000,000 $ 491,000,000 $ 552,000,000
Pre-Mod Interest Rate 4.01% 4.95% 4.16% 4.03%
Post-Mod Interest Rate 3.96% 3.41% 3.52% 2.87%
Net Charge-offs $ 15,000,000 $ 17,000,000 $ 32,000,000 $ 43,000,000