Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Statement of Financial Position [Abstract]
Trade and other receivables, allowance	$ 78.2	$ 72.2
Ordinary shares, nominal value per share (in dollars per share)	$ 0.10	$ 0.10
Ordinary shares authorized (in shares)	800,000,000	800,000,000
Ordinary shares issued (in shares)	225,445,522	223,709,308
Ordinary shares outstanding (in shares)	225,445,522	223,709,308