Stock-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2012

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]

A summary of the status of stock options is presented below (options in thousands, aggregate intrinsic value in millions):

Successor	Options		Weighted Average Exercise Prices		Weighted Average Remaining Contractual Term (in years)	Aggregate Intrinsic Value
Balance at December 31, 2011	9,571		$	56.00	4.86	$	200
Granted	4		85.04
Exercised	(2,552	)	47.00
Cancelled	(92	)	81.68
Balance at December 31, 2012	6,931		$	59.00	4.47	$	213
Options exercisable at December 31, 2012	6,927		$	58.98	4.47	$	213

Schedule of Other Share-based Compensation, Activity [Table Text Block]

A summary of the status of restricted shares/units and the weighted average grant date fair values is presented below (shares in thousands):

Successor	Time Based				Performance Based Units				Performance  Stock				Total
Balance at December 31, 2011	101		$	76.90	656		$	76.90	331		$	76.90	1,088		$	76.90
Vested	(26	)	76.90		(653	)	76.90		(121	)	76.90		(800	)	76.90
Forfeited	—		—		(3	)	76.90		(210	)	76.90		(213	)	76.90
Balance at December 31, 2012	75		$	76.90	—		$	—	—		$	—	75		$	76.90

Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value [Table Text Block]

A summary of the fair value of the restricted share/units vested during the year ended December 31, 2012 (Successor), the year ended December 31, 2011 (Successor), the period February 13 – December 31, 2010 (Successor) and the period January 1 – February 12, 2010 (Predecessor), respectively, is presented below:

Total Fair Value of Shares Vested (in millions)	Time Based		Performance Based Units		Performance Stock		Total
Year Ended December 31, 2012	$	2	$	52	$	10	$	64
Year Ended December 31, 2011	$	6	$	36	$	—	$	42
February 13 – December 31, 2010 (Successor)	$	15	$	2	$	—	$	17
January 1 – February 12, 2010 (Predecessor)	$	—	$	—	$	—	$	—

Schedule of Compensation Cost for Share-based Payment Arrangements, Allocation of Share-based Compensation Costs by Plan [Table Text Block]

Compensation cost, net of tax, recorded under the various stock incentive plans is shown in the following table (in millions):

	Successor									Predecessor
	Year Ended			Year Ended			February 13 - December 31, 2010			January 1 - February 12, 2010
	December 31, 2012			December 31, 2011
Compensation cost	$	19		$	64		$	114		$	8
Income tax benefit	(7		)	(24		)	(40		)	(3		)
Total	$	12		$	40		$	74		$	5