Statements of Consolidated Cash Flows (Unaudited) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Operating Activities:
Net loss	$ (72.7)	$ (0.2)
Adjustments to reconcile net loss to cash flows from operating activities:
Depreciation and amortization	78.5	75.3
Lease amortization and accretion expense	82.3	0.0
Lease payments	(75.4)	0.0
Equity-based compensation and employee benefits expense	9.5	12.1
(Gains)/losses on property disposals, net	(4.6)	5.4
Impairment charges	8.2	0.0
Deferred income tax benefit, net	(1.6)	0.0
Other noncash items, net	2.1	3.6
Changes in assets and liabilities, net:
Accounts receivable	(67.2)	(65.6)
Accounts payable	5.3	17.8
Other operating assets	(4.5)	(17.4)
Other operating liabilities	10.6	40.5
Net cash provided by (used in) operating activities	(29.5)	71.5
Investing Activities:
Acquisition of property and equipment	(70.6)	(46.5)
Proceeds from disposal of property and equipment	8.3	4.2
Net cash used in investing activities	(62.3)	(42.3)
Financing Activities:
Repayments of long-term debt	(17.5)	(14.6)
Payments for tax withheld on equity-based compensation	(0.8)	(1.6)
Net cash used in financing activities	(18.3)	(16.2)
Net Increase (Decrease) In Cash, Cash Equivalents and Restricted Amounts Held in Escrow	(110.1)	13.0
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	117.5	158.7
Supplemental Cash Flow Information:
Interest paid	(50.6)	(49.4)
Income tax payment, net	$ (2.5)	$ (2.9)