Condensed Consolidated Statements of Comprehensive Income (USD $)
In Millions, unless otherwise specified
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Net income $ 586 $ 631
Other comprehensive loss, net of taxes    
Unrealized gain on available-for-sale investment securities, net of tax 0 2
Unrealized loss on cash flow hedges, net of tax (23) (4)
Other comprehensive loss (23) (2)
Comprehensive income $ 563 $ 629