Schedule I - CONDENSED BALANCE SHEETS (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Assets
Cash and cash equivalents	$ 2,806	$ 2,771	$ 1,758	$ 891
Restricted cash	76	88
Receivables, net	518	620
Prepayments and other current assets	225	237
Total current assets	3,673	3,770
Restricted cash	109	337
Deferred charges and other	767	793
Total assets	23,535	24,689
Liabilities and Stockholders’ Equity/(Deficit)
Accounts payable	349	443
Accrued expenses and other current liabilities	1,199	1,212
Interest Payable, Current	736	390
Long-term Debt, Current Maturities	15,779	197
Total current liabilities	18,280	2,531
Deferred credits and other	484	668
Deferred income taxes ($8 and $4 attributable to our VIE)	2,079	2,476
Total liabilities	28,277	26,593
Total stockholders’ equity/(deficit)	(4,997)	(3,122)
Total liabilities and stockholders’(deficit)/ equity	23,535	24,689
Parent Company [Member]
Assets
Cash and cash equivalents	378	113	7	4
Restricted cash	11	31
Prepayments and other current assets	25	0
Intercompany receivables	10	1
Total current assets	424	145
Restricted cash	76	20
Deferred charges and other	0	1
Deferred income taxes	4	8
Intercompany receivables	40	340
Total assets	544	514
Liabilities and Stockholders’ Equity/(Deficit)
Accrued expenses and other current liabilities	0	4
Interest Payable, Current	1	0
Intercompany payables	6	5
Long-term Debt, Current Maturities	13	0
Total current liabilities	20	9
Accumulated losses of subsidiaries in excess of investment	5,214	3,582
Deferred credits and other	2	0
Intercompany payables	55	55
Total liabilities	5,291	3,646
Total stockholders’ equity/(deficit)	(4,747)	(3,132)
Total liabilities and stockholders’(deficit)/ equity	$ 544	$ 514