CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Statement of Comprehensive Income [Abstract]
NET INCOME (LOSS)	$ 772	$ (239)	$ 777
Other Comprehensive Income (Loss), AOCI, Pension and Postretirement Benefit Plans, Reclassification Adjustment for Net Gain (Loss) and Net Unamortized Gain (Loss) Arising During Period, Net of Tax	(1,200)	981	(694)
Other Comprehensive (Income) Loss, Pension and Postretirement Benefit Plans, Net Prior Service Cost (Credit) Amortization Adjustment and Arising During Period, Net of Tax	(1)	(84)	(6)
OTHER COMPREHENSIVE (LOSS) INCOME:
Auction rate securities marked to market, net of $—, $— and $(1) tax	0	0	2
Auction rate securities settlements reclassified to net income, net of $—, $— and $(1) tax	0	0	3
Foreign currency translation adjustment and other, net of $(1), $- and $- tax	(14)	2	6
Net current-period other comprehensive income (loss)	(1,215)	899	(689)
COMPREHENSIVE (LOSS) INCOME	$ (443)	$ 660	$ 88