Shareholders' Equity - Schedule of weighted average shares outstanding (Details) - shares shares in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Equity [Abstract]
Basic weighted average ordinary shares outstanding (in shares)	224.7	231.9	238.6
Dilutive effect of potentially issuable shares (in shares)	1.4	1.2	2.0
Diluted weighted average ordinary shares outstanding (in shares)	226.1	233.1	240.6
Antidilutive securities excluded from computation of earnings per share (in shares)	0.3	0.0	0.0