Goodwill and Other Intangible Assets and Liablities (Details) (Successor [Member], USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Successor [Member]
Finite-Lived Intangible Assets [Line Items]
Amortized intangible assets, gross carrying amount	$ 2,013	$ 2,013
Amortized intangible assets, accumulated amortization	899	593
Amortized intangible liabilities, gross carrying amount	2,056	2,056
Amortized intangible liabilities, accumulated amortization	842	560
Amortization of Intangible Assets	306	312
Amortization of Intangible Liabilities	282	294
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Amortization of intangible assets, 2013	306
Amortization of intangible liabilities, 2013	252
Amortization of intangible assets, 2014	306
Amortization of intangible liabilities, 2014	179
Amortization of intangible assets, 2015	54
Amortization of intangible liabilities, 2015	115
Amortization of intangible assets, 2016	31
Amortization of intangible liabilities, 2016	101
Amortization of intangible assets, 2017	31
Amortization of intangible liabilities, 2017	$ 96