Quarterly report pursuant to Section 13 or 15(d)

Accumulated Other Comprehensive Income (Loss) - Reclassifications Out of AOCI (Details)

v3.5.0.2
Accumulated Other Comprehensive Income (Loss) - Reclassifications Out of AOCI (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Gains on sales of debt securities $ 267 $ 168 $ 493 $ 436
Other income (loss) 644 432 1,062 703
Income (loss) before income taxes 5,929 7,218 9,628 11,540
Net interest income 9,213 10,461 18,384 19,872
Personnel (7,722) (7,890) (16,574) (17,504)
Income tax expense (benefit) 1,697 2,084 2,716 3,309
Net income $ 4,232 $ 5,134 6,912 8,231
Reclassification out of Accumulated Other Comprehensive Income        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Net income     21 (446)
Reclassification out of Accumulated Other Comprehensive Income | Accumulated Net Unrealized Investment Gain (Loss) | Debt securities        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Gains on sales of debt securities     492 436
Other income (loss)     (12) (75)
Income (loss) before income taxes     480 361
Income tax expense (benefit)     183 137
Net income     297 224
Reclassification out of Accumulated Other Comprehensive Income | Debit Valuation Adjustments        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Other income (loss)     (12) (510)
Income (loss) before income taxes     (12) (510)
Income tax expense (benefit)     (5) (194)
Net income     (7) (316)
Reclassification out of Accumulated Other Comprehensive Income | Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Income (loss) before income taxes     (381) (487)
Income tax expense (benefit)     (143) (184)
Net income     (238) (303)
Reclassification out of Accumulated Other Comprehensive Income | Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges | Interest rate contracts        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Net interest income     (328) (514)
Reclassification out of Accumulated Other Comprehensive Income | Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges | Equity contracts        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Personnel     (53) 27
Reclassification out of Accumulated Other Comprehensive Income | Employee Benefit Plans        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Income (loss) before income taxes     (50) (85)
Personnel     (50) (85)
Income tax expense (benefit)     (19) (33)
Net income     (31) (52)
Reclassification out of Accumulated Other Comprehensive Income | Foreign currency        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Other income (loss)     0 31
Income (loss) before income taxes     0 31
Income tax expense (benefit)     0 30
Net income     $ 0 $ 1