Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Operating Activities:
Net loss	$ (251.4)	$ (481.0)
Adjustments to reconcile net loss to net cash generated by operating activities:
Depreciation and amortization	392.8	408.9
Equity-based compensation	40.0	56.0
Deferred income taxes	(81.1)	(69.4)
Asset impairments		206.7
Changes in assets and liabilities:
Accounts receivable	(173.9)	33.5
Inventories	(64.9)	(73.5)
Prepaid expenses and other assets	32.3	11.7
Accounts payable and other liabilities	169.0	62.7
Other	4.8	10.7
Net cash generated by operating activities	67.6	166.3
Investing Activities:
Additions to property, plant and equipment	(60.2)	(47.7)
Proceeds from sale of property, plant and equipment	1.3	0.1
Payments upon settlement of net investment hedge	(18.0)
Net cash used in investing activities	(76.9)	(47.6)
Financing Activities:
Long-term debt repaid	(16.0)	(116.0)
Long-term debt proceeds		250.0
Dividends paid on Series A convertible preferred stock	(28.7)
Proceeds from the issuance of common shares under equity-based compensation plans	3.9	0.9
Tax withholding payments for vested equity-based compensation awards	(24.6)	(6.3)
Net cash generated by (used in) financing activities	(65.4)	128.6
Effect of exchange rate changes on cash and cash equivalents	(1.0)	(22.1)
Change in cash and cash equivalents	(75.7)	225.2
Cash and cash equivalent at beginning of period	521.9	598.2
Cash and cash equivalents at end of period	$ 446.2	$ 823.4