v3.4.0.3
Total Equity (Components of Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Beginning balance $ (1,656) $ (1,248)
Cumulative adjustment for accounting change related to DVA (312)  
Other comprehensive income (loss) before reclassifications 764 (5)
Amounts reclassified from AOCI (34) (13)
Net other comprehensive income (loss) during the period 730 (18)
Ending balance (1,238) (1,266)
Debt Valuation Adjustment    
Beginning balance 0 0
Cumulative adjustment for accounting change related to DVA (312)  
Other comprehensive income (loss) before reclassifications 228 0
Amounts reclassified from AOCI (26) 0
Net other comprehensive income (loss) during the period 202 0
Ending balance (110) 0
Increase (Decrease) in income taxes (15)  
Foreign Currency Translation Adjustments    
Beginning balance (963) (663)
Cumulative adjustment for accounting change related to DVA 0  
Other comprehensive income (loss) before reclassifications 132 (220)
Amounts reclassified from AOCI 0 0
Net other comprehensive income (loss) during the period 132 (220)
Ending balance (831) (883)
Change in Net Unrealized Gains (Losses) on Securities Available for Sale    
Beginning balance (319) (73)
Cumulative adjustment for accounting change related to DVA 0  
Other comprehensive income (loss) before reclassifications 402 215
Amounts reclassified from AOCI (7) (15)
Net other comprehensive income (loss) during the period 395 200
Ending balance 76 127
Pension, Postretirement and Other Related Adjustments    
Beginning balance (374) (512)
Cumulative adjustment for accounting change related to DVA 0  
Other comprehensive income (loss) before reclassifications 2 0
Amounts reclassified from AOCI (1) 2
Net other comprehensive income (loss) during the period 1 2
Ending balance $ (373) $ (510)