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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Parenthetical) (Predecessor, USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2011
Predecessor
Defined benefit pension and post-retirement plans, tax	$ 4

Tax effects of the increase (decrease) to accumulated comprehensive income during the period related to benefit plans. While for technical reasons this element has no balance attribute, the default assumption is a credit balance consistent with its label.

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