STATEMENTS OF CONSOLIDATED COMPREHENSIVE INCOME (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Statement of Other Comprehensive Income [Abstract]
Net income	$ 1,037	$ 970
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax	(303)	91
Change in unrealized gain (loss) on marketable securities, net of tax	(2)	(1)
Change in unrealized gain (loss) on cash flow hedges, net of tax	38	(41)
Change in unrecognized pension and postretirement benefit costs, net of tax	26	34
Comprehensive income	$ 796	$ 1,053