Quarterly report pursuant to Section 13 or 15(d)

Fair Value Option - Changes in FV of Assets and Liabilities (Details)

v3.4.0.3
Fair Value Option - Changes in FV of Assets and Liabilities (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (losses) relating to assets and liabilities accounted for under the fair value option $ 276 $ 49
Federal funds sold and securities borrowed or purchased under agreements to resell    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (losses) relating to assets and liabilities accounted for under the fair value option 8 (64)
Loans reported as trading account assets    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (losses) relating to assets and liabilities accounted for under the fair value option 112 (101)
Trading inventory – other    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (losses) relating to assets and liabilities accounted for under the fair value option (113) (14)
Consumer and commercial loans    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (losses) relating to assets and liabilities accounted for under the fair value option 29 (48)
Loans held-for-sale    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (losses) relating to assets and liabilities accounted for under the fair value option 165 208
Other assets    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (losses) relating to assets and liabilities accounted for under the fair value option 2 8
Long-term deposits    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (losses) relating to assets and liabilities accounted for under the fair value option (31) (9)
Federal funds purchased and securities loaned or sold under agreements to repurchase    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (losses) relating to assets and liabilities accounted for under the fair value option (8) 54
Unfunded loan commitments    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (losses) relating to assets and liabilities accounted for under the fair value option 148 118
Short-term borrowings    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (losses) relating to assets and liabilities accounted for under the fair value option   (1)
Long-term debt    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (losses) relating to assets and liabilities accounted for under the fair value option (36) (102)
Trading Account Profits (Losses)    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (losses) relating to assets and liabilities accounted for under the fair value option 3 111
Trading Account Profits (Losses) | Federal funds sold and securities borrowed or purchased under agreements to resell    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (losses) relating to assets and liabilities accounted for under the fair value option 8 (64)
Trading Account Profits (Losses) | Loans reported as trading account assets    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (losses) relating to assets and liabilities accounted for under the fair value option 112 (101)
Trading Account Profits (Losses) | Trading inventory – other    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (losses) relating to assets and liabilities accounted for under the fair value option (113) (14)
Trading Account Profits (Losses) | Consumer and commercial loans    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (losses) relating to assets and liabilities accounted for under the fair value option 19 35
Trading Account Profits (Losses) | Loans held-for-sale    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (losses) relating to assets and liabilities accounted for under the fair value option 0 (47)
Trading Account Profits (Losses) | Other assets    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (losses) relating to assets and liabilities accounted for under the fair value option 0 0
Trading Account Profits (Losses) | Long-term deposits    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (losses) relating to assets and liabilities accounted for under the fair value option (9) (4)
Trading Account Profits (Losses) | Federal funds purchased and securities loaned or sold under agreements to repurchase    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (losses) relating to assets and liabilities accounted for under the fair value option (8) 54
Trading Account Profits (Losses) | Unfunded loan commitments    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (losses) relating to assets and liabilities accounted for under the fair value option 0 0
Trading Account Profits (Losses) | Short-term borrowings    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (losses) relating to assets and liabilities accounted for under the fair value option   (1)
Trading Account Profits (Losses) | Long-term debt    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (losses) relating to assets and liabilities accounted for under the fair value option (6) 253
Mortgage Banking Income (Loss)    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (losses) relating to assets and liabilities accounted for under the fair value option 130 192
Mortgage Banking Income (Loss) | Federal funds sold and securities borrowed or purchased under agreements to resell    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (losses) relating to assets and liabilities accounted for under the fair value option 0 0
Mortgage Banking Income (Loss) | Loans reported as trading account assets    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (losses) relating to assets and liabilities accounted for under the fair value option 0 0
Mortgage Banking Income (Loss) | Trading inventory – other    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (losses) relating to assets and liabilities accounted for under the fair value option 0 0
Mortgage Banking Income (Loss) | Consumer and commercial loans    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (losses) relating to assets and liabilities accounted for under the fair value option 0 0
Mortgage Banking Income (Loss) | Loans held-for-sale    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (losses) relating to assets and liabilities accounted for under the fair value option 130 192
Mortgage Banking Income (Loss) | Other assets    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (losses) relating to assets and liabilities accounted for under the fair value option 0 0
Mortgage Banking Income (Loss) | Long-term deposits    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (losses) relating to assets and liabilities accounted for under the fair value option 0 0
Mortgage Banking Income (Loss) | Federal funds purchased and securities loaned or sold under agreements to repurchase    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (losses) relating to assets and liabilities accounted for under the fair value option 0 0
Mortgage Banking Income (Loss) | Unfunded loan commitments    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (losses) relating to assets and liabilities accounted for under the fair value option 0 0
Mortgage Banking Income (Loss) | Short-term borrowings    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (losses) relating to assets and liabilities accounted for under the fair value option   0
Mortgage Banking Income (Loss) | Long-term debt    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (losses) relating to assets and liabilities accounted for under the fair value option 0 0
Other Income (Loss)    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (losses) relating to assets and liabilities accounted for under the fair value option 143 (254)
Other Income (Loss) | Federal funds sold and securities borrowed or purchased under agreements to resell    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (losses) relating to assets and liabilities accounted for under the fair value option 0 0
Other Income (Loss) | Loans reported as trading account assets    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (losses) relating to assets and liabilities accounted for under the fair value option 0 0
Other Income (Loss) | Trading inventory – other    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (losses) relating to assets and liabilities accounted for under the fair value option 0 0
Other Income (Loss) | Consumer and commercial loans    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (losses) relating to assets and liabilities accounted for under the fair value option 10 (83)
Other Income (Loss) | Loans held-for-sale    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (losses) relating to assets and liabilities accounted for under the fair value option 35 63
Other Income (Loss) | Other assets    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (losses) relating to assets and liabilities accounted for under the fair value option 2 8
Other Income (Loss) | Long-term deposits    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (losses) relating to assets and liabilities accounted for under the fair value option (22) (5)
Other Income (Loss) | Federal funds purchased and securities loaned or sold under agreements to repurchase    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (losses) relating to assets and liabilities accounted for under the fair value option 0 0
Other Income (Loss) | Unfunded loan commitments    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (losses) relating to assets and liabilities accounted for under the fair value option 148 118
Other Income (Loss) | Short-term borrowings    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (losses) relating to assets and liabilities accounted for under the fair value option   0
Other Income (Loss) | Long-term debt    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (losses) relating to assets and liabilities accounted for under the fair value option $ (30) $ (355)