Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies - Other Commitments (Details)

v3.7.0.1
Commitments and Contingencies - Other Commitments (Details) - USD ($)
$ in Millions
Mar. 31, 2017
Dec. 31, 2016
Loss Contingencies [Line Items]    
2017 $ 1,700  
2018 2,200  
2019 1,900  
2020 1,700  
2021 1,400  
Thereafter 5,100  
Liquefied Natural Gas Commodities    
Loss Contingencies [Line Items]    
Other commitments 1,500 $ 1,900
Forward-Dated Resale and Securities Borrowing Agreements    
Loss Contingencies [Line Items]    
Other commitments 61,500 48,900
Forward-Dated Repurchase and Securities Lending Agreements    
Loss Contingencies [Line Items]    
Other commitments 36,600 24,400
Retail Automotive Loans    
Loss Contingencies [Line Items]    
Other commitments 175 475
Auto Loans and Leases    
Loss Contingencies [Line Items]    
Other commitment, due next year 1,900  
Residential and Commercial Portfolio Segments | Residential and Commercial Financing Receivable | Loan Purchase Commitments    
Loss Contingencies [Line Items]    
Other commitments 537 767
Commercial Portfolio Segment | Loan Purchase Commitments    
Loss Contingencies [Line Items]    
Other commitments $ 564 $ 636