Segment Information - Reconciliation of Segment Gross Profit to Consolidated Income (Loss) From Continuing Operations Before Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Gross profit	$ 142.2	$ 74.9	$ 281.4	$ 188.0
Selling, general and administrative	(94.6)	(80.2)	(184.6)	(167.0)
Research and development	(6.8)	(3.2)	(12.4)	(9.4)
Interest expense	(8.4)	(4.6)	(18.5)	(18.5)
Other (expense), net	(227.8)	(53.7)	(410.4)	(101.8)
Total loss from continuing operations before income taxes	(195.4)	(66.8)	(344.5)	(108.7)
Operating Segments
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Gross profit	142.1	71.8	275.8	176.3
Other gross profit
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Gross profit	0.1	3.1	5.6	11.7
Interest expense	(8.4)	(4.6)	(18.5)	(18.5)
Other (expense), net	$ (227.8)	$ (53.7)	$ (410.4)	$ (101.8)