Statements of Consolidated Cash Flows (Unaudited) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Operating Activities:
Net income (loss)	$ (88.7)	$ 2.7
Adjustments to reconcile net income (loss) to cash flows from operating activities:
Depreciation and amortization	115.7	110.2
Lease amortization and accretion expense	124.7	0.0
Lease payments	(113.4)	0.0
Equity-based compensation and employee benefits expense	14.4	16.2
(Gains) losses on property disposals, net	(3.6)	7.3
Impairment charges	8.2	0.0
Deferred income tax benefit, net	(2.3)	0.0
Non-union pension settlement charge	1.7	7.2
Loss on extinguishment of debt	11.2	0.0
Other non-cash items, net	4.1	4.9
Changes in assets and liabilities, net:
Accounts receivable	(42.8)	(58.9)
Accounts payable	(3.1)	32.9
Other operating assets	0.6	3.1
Other operating liabilities	(13.3)	32.3
Net cash provided by operating activities	13.4	157.9
Investing Activities:
Acquisition of property and equipment	(111.5)	(92.4)
Proceeds from disposal of property and equipment	9.9	4.9
Net cash used in investing activities	(101.6)	(87.5)
Financing Activities:
Issuance of long-term debt, net of discounts	570.0	0.0
Repayments of long-term debt	(576.2)	(20.9)
Debt issuance costs	(11.1)	0.0
Payments for tax withheld on equity-based compensation	(0.8)	(2.0)
Net cash used in financing activities	(18.1)	(22.9)
Net Increase (Decrease) In Cash, Cash Equivalents and Restricted Amounts Held in Escrow	(106.3)	47.5
Cash, Cash Equivalents and Restricted Amounts Held in Escrow, Beginning of Period	227.6	145.7
Cash, Cash Equivalents and Restricted Amounts Held in Escrow, End of Period	121.3	193.2
Supplemental Cash Flow Information:
Interest paid	(77.8)	(71.3)
Income tax payment, net	$ (2.6)	$ (3.7)