Consolidated Statement of Equity (Deficit) (USD $) In Millions		Common Stock [Member] Predecessor [Member] Pre Eliminations [Member]	Common Stock [Member] Predecessor [Member]	Common Stock [Member] Successor [Member]	Additional Paid-in Capital [Member] Predecessor [Member] Pre Eliminations [Member]	Additional Paid-in Capital [Member] Predecessor [Member]	Additional Paid-in Capital [Member] Successor [Member]	Retained Earnings [Member] Predecessor [Member] Pre Eliminations [Member]	Retained Earnings [Member] Predecessor [Member]	Retained Earnings [Member] Successor [Member]	Accumulated Other Comprehensive Income (Loss) [Member] Predecessor [Member] Pre Eliminations [Member]	Accumulated Other Comprehensive Income (Loss) [Member] Predecessor [Member]	Accumulated Other Comprehensive Income (Loss) [Member] Successor [Member]	Treasury Stock [Member] Predecessor [Member] Pre Eliminations [Member]	Treasury Stock [Member] Predecessor [Member]	Treasury Stock [Member] Successor [Member]	Parent [Member] Predecessor [Member] Pre Eliminations [Member]	Parent [Member] Predecessor [Member]	Parent [Member] Successor [Member]	Noncontrolling Interest [Member] Predecessor [Member] Pre Eliminations [Member]	Noncontrolling Interest [Member] Predecessor [Member] Post Eliminations [Member]	Noncontrolling Interest [Member] Predecessor [Member]	Noncontrolling Interest [Member] Successor [Member]	Predecessor [Member] Post Eliminations [Member]	Predecessor [Member]	Successor [Member]	Total
Equity (deficit) at Dec. 31, 2012			$ 978			$ 1,105			$ 2,600			$ (2,616)			$ (5,746)			$ (3,679)				$ 2			$ (3,677)
Issuance of Successor Company common stock						613												613							613
Equity transactions with noncontrolling interest																						8			8
Cancellation of Predecessor Company equity			(978)			(1,105)			(4,634)			1,008			5,711			2							2
Net income (loss)									2,066									2,066							2,066
Stock-based compensation						3												3							3
Issuance of treasury stock	[1]					(3)			(32)						35
Currency translation adjustments												4						4							4
Pension and other postretirement liability adjustments												1,604						1,604							1,604
Total other comprehensive income												1,608						1,608							1,608
Equity (deficit) at Aug. 31, 2013		978			1,105			4,634			(1,008)			(5,711)			(2)			2	10	10		10	10
Equity (deficit) at Dec. 31, 2011			978			1,108			4,071			(2,666)			(5,843)			(2,352)				2			(2,350)
Net income (loss)									(1,379)									(1,379)							(1,379)
Stock-based compensation						2												2							2
Issuance of treasury stock	[1]					(5)			(92)						97
Unrealized loss arising from hedging activity												(1)						(1)							(1)
Reclassification adjustment for hedging related losses included in net earnings												5						5							5
Currency translation adjustments												(14)						(14)							(14)
Pension and other postretirement liability adjustments												60						60							60
Total other comprehensive income												50						50							50
Equity (deficit) at Dec. 31, 2012			978			1,105			2,600			(2,616)			(5,746)			(3,679)				2			(3,677)
Equity (deficit) at Aug. 31, 2013		978			1,105			4,634			(1,008)			(5,711)			(2)			2	10			10
Equity transactions with noncontrolling interest																							7			7
Net income (loss)										(81)									(81)				3			(78)
Stock-based compensation							1												1							1
Purchases of treasury stock	[2]						(1)									(3)			(4)							(4)
Currency translation adjustments													1						1							1
Pension and other postretirement liability adjustments													98						98							98
Total other comprehensive income																										99
Equity (deficit) at Dec. 31, 2013							613			(81)			99			(3)			628				20			648	648
Equity transactions with noncontrolling interest																							(3)			(3)
Net income (loss)										(123)									(123)				5			(118)
Stock-based compensation							8												8							8
Purchases of treasury stock	[2]															(1)			(1)							(1)
Currency translation adjustments													(33)						(33)							(33)
Pension and other postretirement liability adjustments													(202)						(202)							(202)
Total other comprehensive income																										(235)
Equity (deficit) at Dec. 31, 2014							$ 621			$ (204)			$ (136)			$ (4)			$ 277				$ 22			$ 299	$ 299

[1] Includes stock awards issued, offset by shares surrendered for taxes.

[2] Represents purchases of common stock and/ or warrants to satisfy tax withholding obligations.