Pension Plans and Other Benefits - Changes in Defined Benefit Obligations and Plan Assets (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Defined Benefit Plan Disclosure
Defined Benefit Plan Benefit Obligation Decrease Lump Sum	$ 43.3
Change in plan assets:
Fair value at beginning of period	726.7
Fair value at end of period	715.6	$ 726.7
Amounts recognized in the consolidated balance sheets:
Noncurrent liabilities	(64.9)	(69.6)
North American Pension Plans
Change in projected benefit obligation:
Benefit obligation at beginning of period	731.2	828.4
Service cost	5.8	6.5	$ 6.3
Interest cost	25.1	30.1	32.8
Actuarial (gain) loss	16.0	(20.1)
Currency fluctuations	9.7	(58.1)
Benefits paid	(84.9)	(56.2)
Plan Amendments	10.6	0.0
Liability loss due to curtailment/settlement	0.0	0.6
Projected benefit obligation at end of period	713.5	731.2	828.4
Change in plan assets:
Fair value at beginning of period	726.7	812.1
Currency fluctuations	10.1	(57.6)
Actual return	52.2	15.5
Company contribution	11.5	12.9
Benefits paid	(84.9)	(56.2)
Fair value at end of period	715.6	726.7	$ 812.1
Funded/(unfunded) status of the plans as of the end of period	2.1	(4.5)
Amounts recognized in the consolidated balance sheets:
Noncurrent assets	24.8	23.5
Current liabilities	(0.7)	(0.7)
Noncurrent liabilities	(22.0)	(27.3)
Amounts recognized in accumulated other comprehensive (income) loss
Prior service costs (credits)	23.2	13.9
Actuarial (gain) loss	109.6	110.1
Accumulated benefit obligation for the defined benefit pension plans	712.1	727.1
North American Postretirement Benefit Plans
Change in projected benefit obligation:
Benefit obligation at beginning of period	46.6
Projected benefit obligation at end of period	$ 44.9	$ 46.6