Annual report pursuant to Section 13 and 15(d)

Federal Funds Sold or Purchased, Securities Financing Agreements and Short-term Borrowings - Offsetting Assets and Liabilities (Details)

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Federal Funds Sold or Purchased, Securities Financing Agreements and Short-term Borrowings - Offsetting Assets and Liabilities (Details) - USD ($)
$ in Millions
Dec. 31, 2017
Dec. 31, 2016
Securities borrowed or purchased under agreements to resell:    
Gross Assets $ 348,472 $ 326,970
Amounts Offset (135,725) (128,746)
Net Balance Sheet Amount 212,747 198,224
Financial Instruments (165,720) (154,974)
Net Assets 47,027 43,250
Securities loaned or sold under agreements to repurchase:    
Gross Liabilities 312,582 299,028
Amounts Offset (135,725) (128,746)
Net Balance Sheet Amount 176,857 170,282
Financial Instruments (146,205) (140,774)
Net Liabilities 30,652 29,508
Other:    
Gross Liabilities 22,711 14,448
Amounts Offset 0 0
Net Balance Sheet Amount 22,711 14,448
Financial Instruments (22,711) (14,448)
Net Liabilities 0 0
Total Securities Financing Agreements Liability:    
Gross Liabilities 335,293 313,476
Amounts Offset (135,725) (128,746)
Net Balance Sheet Amount 199,568 184,730
Financial Instruments (168,916) (155,222)
Net Liabilities 30,652 29,508
Loans and leases repurchase activity $ 10,200 $ 10,100