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		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Earnings Per Share [Abstract]
Net earnings (loss)	$ 185.7	$ 189.8	$ 245.9	$ (3.7)
Weighted average ordinary shares outstanding	516.9	516.0	516.8	515.5
Weighted average number diluted shares outstanding adjustment, stock-based awards and warrants	0.8	0.2	0.5	0.0
Total dilutive shares outstanding	517.7	516.2	517.3	515.5
Basic earnings (loss) per ordinary share	$ 0.36	$ 0.37	$ 0.48	$ (0.01)
Diluted earnings (loss) per ordinary share	$ 0.36	$ 0.37	$ 0.48	$ (0.01)