Annual report pursuant to Section 13 and 15(d)

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

v3.6.0.2
Fair Value Option - Changes in FV of Assets and Liabilities (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Fair Value, Option, Quantitative Disclosures [Line Items]      
Gains (losses) relating to assets and liabilities accounted for under the fair value option $ 774 $ 2,671 $ 2,395
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 (63) (195) (114)
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 301 (199) (87)
Trading inventory – other      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Gains (losses) relating to assets and liabilities accounted for under the fair value option 57 1,284 1,091
Loans and leases      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Gains (losses) relating to assets and liabilities accounted for under the fair value option 12 (243) 45
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 535 700 825
Other assets      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Gains (losses) relating to assets and liabilities accounted for under the fair value option 20 10  
Long-term deposits      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Gains (losses) relating to assets and liabilities accounted for under the fair value option 33 14 (3)
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 (22) 33 4
Short-term borrowings      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Gains (losses) relating to assets and liabilities accounted for under the fair value option   3 52
Unfunded loan commitments      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Gains (losses) relating to assets and liabilities accounted for under the fair value option 487 (210) (64)
Long-term debt      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Gains (losses) relating to assets and liabilities accounted for under the fair value option (586) 1,474 646
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 (156) 3,050 1,128
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 (64) (195) (114)
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 301 (199) (87)
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 57 1,284 1,091
Trading Account Profits (Losses) | Loans and leases      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Gains (losses) relating to assets and liabilities accounted for under the fair value option 49 52 (24)
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 11 (36) (56)
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 1 1 23
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 (22) 33 4
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   3 52
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 0
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 (489) 2,107 239
Mortgage Banking Income      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Gains (losses) relating to assets and liabilities accounted for under the fair value option 518 673 798
Mortgage Banking Income | 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 0
Mortgage Banking Income | 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 0
Mortgage Banking Income | 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 0
Mortgage Banking Income | Loans and leases      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Gains (losses) relating to assets and liabilities accounted for under the fair value option 0 0 0
Mortgage Banking Income | 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 518 673 798
Mortgage Banking Income | 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 | 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 0
Mortgage Banking Income | 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 0
Mortgage Banking Income | 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 0
Mortgage Banking Income | 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 0
Mortgage Banking Income | 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 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 412 (1,052) 469
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 1 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 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 0
Other Income (Loss) | Loans and leases      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Gains (losses) relating to assets and liabilities accounted for under the fair value option (37) (295) 69
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 6 63 83
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 20 10  
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 32 13 (26)
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 0
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 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 487 (210) (64)
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 $ (97) $ (633) $ 407