CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (unaudited) (Parenthetical) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Tax expense (benefit) of unrealized gains/losses on cash flow hedges	$ 25	$ (24)	$ 52	$ (26)
Tax expense (benefit) on cash flow hedges reclassified from AOCI to net income	9	2	22	11
Tax expense (benefit) of unrealized gains/losses on available for sale securities still held	1	(6)	27	25
Tax expense (benefit) on available for sale securities reclassified from AOCI to net income	(3)	(21)	(7)	(25)
Tax expense (benefit) of defined benefit pension and other benefits plans	0	5	4	(3)
Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax	(11)	(1)	(16)	2
Other comprehensive income (loss) related to equity method investee, tax	$ 3	$ 1	$ 4	$ (4)