Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) shares in Millions, $ in Millions	Mar. 31, 2021	Dec. 31, 2020
Statement of Financial Position [Abstract]
Receivables, allowances	$ 38.5	$ 40.2
Allowance for contract assets	1.1	2.4
Property, plant and equipment, accumulated depreciation	2,400.6	2,154.2
Intangible assets, accumulated amortization	$ 422.8	$ 493.1
Ordinary shares, par value (in dollars)	$ 1.00	$ 1.00
Ordinary shares, shares authorized (in shares)	618.3	618.3
Ordinary shares, shares issued (in shares)	449.8	449.5
Ordinary shares, shares outstanding (in shares)	449.8	449.5