Accounts Payable and Other Current Liabilities (Details) (Successor [Member], USD $) In Millions, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Successor [Member]
Accounts Payable and Other Current Liablities [Line Items]
Compensation and benefits payable	$ 673	$ 699
Property and income tax liabilities	541	361
Accounts payable	310	435
Accrued interest	208	195
Casualty and environmental liabilities	170	205
Rents and leases	168	168
Customer incentives	155	139
Other	897	941
Total	$ 3,122	$ 3,143