Earnings (Loss) per Ordinary Share (Basic and Diluted Earnings Per Ordinary Share) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Earnings Per Share [Abstract]
Net earnings (loss)	$ 39.4	$ (168.5)	$ 60.2	$ (193.5)
Weighted average ordinary shares outstanding	516.9	515.5	516.7	515.3
Weighted average number diluted shares outstanding adjustment, stock-based awards and warrants	0.3	0.0	0.4	0.0
Total dilutive shares outstanding	517.2	515.5	517.1	515.3
Basic earnings (loss) per ordinary share	$ 0.08	$ (0.33)	$ 0.12	$ (0.38)
Diluted earnings (loss) per ordinary share	$ 0.08	$ (0.33)	$ 0.12	$ (0.38)