Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended						9 Months Ended
	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2022	Sep. 30, 2021
Earnings:
Net income (loss) from continuing operations	$ (117.9)			$ 79.4			$ (63.7)	$ 278.2
Net income (loss) from discontinued operations, net of income taxes	(1.9)			13.7			(1.9)	38.0
Net income (loss)	$ (119.8)	$ 37.4	$ 16.7	$ 93.1	$ 151.6	$ 71.5	$ (65.6)	$ 316.2
Shares:
Weighted average ordinary shares outstanding	35.2			38.8			36.3	38.7
Dilutive effect of RSUs, option awards and PSUs				0.7				0.9
Diluted weighted average ordinary shares outstanding	35.2			39.5			36.3	39.6
Income (loss) per share
Income (loss) per share-basic, Continuing operations	$ (3.35)			$ 2.04			$ (1.76)	$ 7.19
Income (loss) per share-basic, Discontinued operations	(0.06)			0.35			(0.05)	0.98
Income (loss) per share-basic	(3.41)			2.39			(1.81)	8.17
Income (loss) per share-diluted, Continuing operations	(3.35)			2.01			(1.76)	7.03
Income (loss) per share-diluted, Discontinued operations	(0.06)			0.35			(0.05)	0.96
Income (loss) per share- diluted	$ (3.41)			$ 2.36			$ (1.81)	$ 7.99
Anti-dilutive shares excluded				0.6				0.6