CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
NET INCOME	$ 74	$ 115	$ 274	$ 326
OTHER COMPREHENSIVE INCOME (LOSS):
Auction rate securities marked to market, net of $-, $-, $(2), and $- tax			3
Foreign currency translation adjustment and other, net of $-, $2, $-, and $2 tax	(3)	(4)	1	(4)
Items related to employee benefit plans:
Change in net actuarial loss, net of $(3), $(1), $(6), and $(3) tax	5	2	10	4
Other comprehensive income (loss)	2	(2)	14
COMPREHENSIVE INCOME	$ 76	$ 113	$ 288	$ 326