Unaudited Quarterly Financial Data (Tables)

12 Months Ended

Dec. 31, 2012

Quarterly Financial Information Disclosure [Abstract]

Unaudited Quarterly Financial Data

	Three Months Ended
	March 31,						June 30,						September 30,						December 31,
	2012			2011			2012			2011			2012			2011			2012			2011
	(dollars in millions except per share data)
Revenue	$	1,586		$	914		$	1,586		$	913		$	1,590		$	927		$	1,614		$	1,579
Gross Margin	929			557			938			566			948			585			959			919
Operating Income (Loss)	116			(3		)	133			3			138			7			188			45
Net Loss	(138		)	(205		)	(62		)	(181		)	(166		)	(207		)	(56		)	(163		)
Loss per share (Basic and Diluted)	$	(0.66	)	$	(1.83	)	$	(0.29	)	$	(1.59	)	$	(0.76	)	$	(1.75	)	$	(0.26	)	$	(0.80	)