CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)
NET INCOME	$ 777	$ 573	$ 948
Items related to employee benefit plans:
Change in net actuarial loss, net of $432, $508 and $32 tax	(694)	(812)	(53)
Change in net prior service credit, net of $4, $23 and $2 tax	(6)	(37)	(3)
Auction rate securities marked to market, net of $(1), $2 and $- tax	2	(4)
Auction rate securities settlements reclassified to net income, net of $(1), $- and $- tax	3
Foreign currency translation adjustment and other, net of $-, $2 and $- tax	6	(18)
Other comprehensive (loss) income	(689)	(871)	(56)
COMPREHENSIVE INCOME (LOSS)	$ 88	$ (298)	$ 892