Quarterly report pursuant to Section 13 or 15(d)

Fair Value Option - Gains (Losses) Related to Borrower-specific Credit Risk (Details)

v3.4.0.3
Fair Value Option - Gains (Losses) Related to Borrower-specific Credit Risk (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Loans reported as trading account assets    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (losses) related to borrower-specific credit risk for assets and liabilities accounted for under the fair value option $ 9 $ 8
Consumer and commercial loans    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (losses) related to borrower-specific credit risk for assets and liabilities accounted for under the fair value option (10) (28)
Loans held-for-sale    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (losses) related to borrower-specific credit risk for assets and liabilities accounted for under the fair value option $ (1) $ 39