Annual report pursuant to Section 13 and 15(d)

Commitments and Contingencies - Other Commitments (Details)

v3.6.0.2
Commitments and Contingencies - Other Commitments (Details) - USD ($)
$ in Millions
Dec. 31, 2016
Dec. 31, 2015
Loss Contingencies [Line Items]    
2017 $ 2,300  
2018 2,100  
2019 1,800  
2020 1,600  
2021 1,300  
Thereafter 4,500  
Liquefied Natural Gas Commodities    
Loss Contingencies [Line Items]    
Other commitments 1,900 $ 1,900
Forward-Dated Resale and Securities Borrowing Agreements    
Loss Contingencies [Line Items]    
Other commitments 48,900 88,600
Forward-Dated Repurchase and Securities Lending Agreements    
Loss Contingencies [Line Items]    
Other commitments 24,400 53,700
Retail Automotive Loans    
Loss Contingencies [Line Items]    
Other commitments 475 1,200
Auto Loans and Leases    
Loss Contingencies [Line Items]    
Other commitment, due next year 2,400  
Residential and Commercial Portfolio Segments | Residential and Commercial Financing Receivable | Loan Purchase Commitments    
Loss Contingencies [Line Items]    
Other commitments 767 729
Commercial Portfolio Segment | Loan Purchase Commitments    
Loss Contingencies [Line Items]    
Other commitments $ 636 $ 874