CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
OPERATING ACTIVITIES:
NET INCOME (LOSS)	$ (9)	$ (26)
Less: (Loss) income from discontinued operations, net of tax expense	0	(2)
Less: Loss from discontinued operations, net of tax expense	0	(2)
Net Income (Loss) Attributable to Noncontrolling Interest	0	(1)
Income (loss) from continuing operations	(9)	(24)
Adjustments to reconcile net income (loss) from continuing operations to net cash provided by operating activities from continuing operations:
Depreciation and amortization expense	53	53
Amortization of long-term debt deferred financing costs	2	2
Net write-offs	9	0
Defined benefit pension plan settlement gain	0	(6)
Loss on extinguishment of debt	2	1
Non-cash convertible debt related expense	8	7
Stock-based compensation expense	4	5
Equity in net income (loss) from unconsolidated investments	(1)	1
Dividends from unconsolidated investments	0	1
Deferred income taxes	(8)	(11)
Other, net	(1)	(7)
Change in restricted funds held in trust	0	9
Change in working capital	43	33
Total adjustments for continuing operations	111	88
Net cash provided by operating activities from continuing operations	102	64
Net cash provided by operating activities from discontinued operations	1	(2)
Net cash provided by operating activities	103	62
INVESTING ACTIVITIES:
Proceeds from the sale of investment securities	2	2
Purchase of investment securities	(2)	(13)
Purchase of property, plant and equipment	(72)	(63)
Acquisition of noncontrolling interest in subsidiary	0	(14)
Other, net	(1)	1
Net cash used in investing activities from continuing operations	(73)	(87)
Net cash provided by investing activities from discontinued operations	0	0
Net cash (used in) provided by investing activities	(73)	(87)
FINANCING ACTIVITIES:
Proceeds from borrowings on long-term debt	400	0
Payment of deferred financing costs	(10)	(1)
Principal payments on long-term debt	(95)	(1)
Principal payments on project debt	(9)	(16)
Payments of borrowings on revolving credit facility	(115)	(51)
Proceeds from borrowings on revolving credit facility	5	98
Change in restricted funds held in trust	2	(3)
Cash dividends paid to stockholders	(22)	0
Common stock repurchased	0	(24)
Other, net	7	(15)
Net cash used in financing activities from continuing operations	163	(13)
Net cash (used in) provided by financing activities from discontinued operations	(2)	3
Net cash used in financing activities	161	(10)
Effect of exchange rate changes on cash and cash equivalents	(1)	0
Net (decrease) increase in cash and cash equivalents	190	(35)
Cash and cash equivalents at beginning of period	200	246
Cash and cash equivalents at end of period	390	211
Less: Cash and cash equivalents of discontinued operations at end of period	1	3
Cash and cash equivalents	$ 389	$ 208