Interest Expense and Related Charges (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Interest Expense and Related Charges [Line Items]
Debtor-In-Possession Financing, Interest Paid And Accrued	$ 58	$ 0	$ 66	$ 0
Interest Expense, Debt	0	160	266	470
Interest related to pushed down debt	0	1	1	5
Interest expense on toggle notes payable in additional principal (Notes 7 and 8)	0	45	65	130
Amortization of Debt Discount (Premium)	0	(20)	(24)	(62)
Debt Related Commitment Fees and Debt Issuance Costs	0	5	7	23
Interest Expense	$ 58	$ 191	$ 381	$ 566