Schedule I Schedule I - CONDENSED STATEMENT OF COMPREHENSIVE INCOME (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended								12 Months Ended			48 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2014
Condensed Financial Statements, Captions [Line Items]
Net revenues	$ 2,131	$ 2,212	$ 2,140	$ 2,033	$ 2,004	$ 2,087	$ 2,069	$ 2,060	$ 8,516	$ 8,220	$ 8,186
Operating expenses
Write-downs, reserves, and project opening costs, net of recoveries									120	104	99
Corporate expense									282	161	195
Acquisition and integration costs									116	99	23
Total operating expenses									8,968	10,246	8,052
Loss from operations	(402)	(328)	127	151	(1,777)	(524)	127	148	(452)	(2,026)	134
Interest expense									(2,670)	(2,252)	(2,100)	(7,000)
Other income, including interest income									(95)	28	162
Loss from operations before income taxes									(3,217)	(4,250)	(1,804)
Income tax benefit									543	1,517	701
Net loss									(2,674)	(2,733)	(1,103)
Other comprehensive income/(loss), net of income taxes									(2)	(38)	37
Comprehensive loss									(2,785)	(2,986)	(1,472)
Parent Company [Member]
Condensed Financial Statements, Captions [Line Items]
Net revenues									0	0	0
Operating expenses
Write-downs, reserves, and project opening costs, net of recoveries									0	0	15
Income (Loss) from Equity Method Investments									(1)	(1)	0
Loss on interests in subsidiaries									2,765	2,923	1,464
Corporate expense									14	16	28
Acquisition and integration costs									10	0	0
Total operating expenses									2,788	2,938	1,507
Loss from operations									(2,788)	(2,938)	(1,507)
Interest expense									(3)	2	(1)
Other income, including interest income									15	23	18
Loss from operations before income taxes									(2,776)	(2,913)	(1,490)
Income tax benefit									(7)	0	9
Net loss									(2,783)	(2,913)	(1,481)
Other comprehensive income/(loss), net of income taxes									0	0	0
Comprehensive loss									$ (2,783)	$ (2,913)	$ (1,481)