Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) $ in Millions	Mar. 31, 2017 USD ($) $ / shares shares	Dec. 31, 2016 € / shares	Dec. 31, 2016 USD ($) shares
Statement of Financial Position [Abstract]
Receivables, allowances | $	$ 104.2		$ 85.6
Property, plant and equipment, accumulated depreciation | $	1,765.0		1,691.8
Intangible assets, accumulated amortization | $	$ 316.6		$ 245.9
Ordinary shares, par value (in dollars/EUR per share) | (per share)	$ 1.00	€ 0.7625
Ordinary shares, shares authorized (in shares)	525,000,000		119,200,000
Ordinary shares, shares issued (in shares)	347,400,000		3,300,000
Canceled shares (in shares)	0		3,200,000
Ordinary shares, shares outstanding (in shares)	466,600,000		118,900,000
Ordinary shares, held in employee benefit trust (in shares)	100,000
Treasury stock (in shares)	0		300,000