Statements Of Consolidated Cash Flows (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Operating Activities:
Net loss	$ (104.2)	$ (145.6)
Noncash items included in net loss:
Depreciation and amortization	94.8	97.9
Paid-in-kind interest on Series A Notes and Series B Notes	14.9	0
Amortization of deferred debt costs	2.5	19.6
Equity based compensation expense (benefit)	2.1	(0.6)
Deferred income tax benefit	0	(0.7)
Losses (gains) on property disposals, net	1.8	(10.4)
Other noncash items	(3.1)	1.6
Changes in assets and liabilities, net:
Accounts receivable	(33.5)	(98.0)
Accounts payable	14.2	10.2
Other operating assets	0.5	(22.0)
Other operating liabilities	(6.6)	86.7
Net cash used in operating activities	(16.6)	(61.3)
Investing Activities:
Acquisition of property and equipment	(30.7)	(22.7)
Proceeds from disposal of property and equipment	21.1	26.0
Receipts from restricted escrow, net	13.3	0
Other, net	2.4	3.1
Net cash provided by (used) in investing activities	6.1	6.4
Financing Activities:
Asset backed securitization borrowings, net	0	41.4
Issuance of long-term debt	45.0	60.7
Repayment of long-term debt	(13.1)	(29.1)
Debt issuance costs	(5.1)	(5.2)
Net cash provided by financing activities	26.8	67.8
Net Increase In Cash and Cash Equivalents	16.3	12.9
Cash and Cash Equivalents, Beginning of Period	200.5	143.0
Cash and Cash Equivalents, End of Period	216.8	155.9
Supplemental Cash Flow Information:
Interest paid	(60.3)	(20.9)
Income tax refund, net	8.7	0.3
Lease financing transactions	0	9.0
Debt redeemed for equity consideration	$ 11.2	$ 0