Subsequent Event (Details) (Successor [Member], SEC Debt Shelf Registration, USD $)	0 Months Ended	1 Months Ended		1 Months Ended
	Jan. 31, 2012	Jul. 31, 2012	Dec. 31, 2012	Jan. 31, 2013 Subsequent Event Authorization of Debt
Subsequent Event [Line Items]
Additional debt securities authorized for issuance by the Board of Managers	$ 1,500,000,000	$ 1,000,000,000		$ 1,000,000,000
Remaining amount of debt securities that may be issued			$ 750,000,000	$ 1,750,000,000