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Consolidated Balance Sheets (Unaudited) (Parenthetical) (Successor, USD $) In Millions, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Successor
ASSETS
Accumulated depreciation	$ 1,056	$ 660

- Definition

The cumulative amount of depreciation, depletion and amortization (related to property, plant and equipment, but not including land) that has been recognized in the income statement.

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