CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
NET INCOME	$ 298	$ 200
Items related to employee benefit plans:
Change in net actuarial loss, net of $(8) and $(3) tax	13	5
Change in net prior service credit, net of $- and $- tax	1
Auction rate securities marked to market, net of $- and $(2) tax		3
Foreign currency translation adjustment and other , net of $(2) and $- tax	(8)	4
Other comprehensive income	6	12
COMPREHENSIVE INCOME	$ 304	$ 212