CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS) INCOME (USD $) In Millions, unless otherwise specified	9 Months Ended	12 Months Ended	3 Months Ended	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2012	Mar. 31, 2011 Predecessor	Dec. 31, 2010 Predecessor
NET INCOME (LOSS)	$ 19	$ 308	$ 211	$ (55)
OTHER COMPREHENSIVE (LOSS) INCOME:
Defined benefit pension and post-retirement plans, net of $233, $278, $(4) and $121 tax	(446)	(372)	7	115
Loss on interest rate cash flow hedges, net of reclassifications to net income, net of $XX, $-, $- and $1 tax				(1)
Auction rate securities marked to market, net of $XX, $-, $- and $1 tax				(1)
Other comprehensive (loss) income	(446)	(372)	7	113
COMPREHENSIVE (LOSS) INCOME	$ (427)	$ (64)	$ 218	$ 58