Restatement of Previously Reported Condensed Consolidated Quarterly Financial Statements - Additional Information - USD ($) $ / shares in Units, $ in Millions	3 Months Ended				12 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Dec. 31, 2017
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Other charges	$ 41.0	$ 25.0			$ 25.0
Amortization of intangible assets	36.0	31.0
Increase (decrease) in inventories	202.0	157.0
Income before income taxes from continuing operations	421.0	$ 446.0			446.0
Performance share payout		150.00%	100.00%	150.00%
Income from continuing operations, net of tax	$ 328.0	$ 331.0			$ 331.0
Income from continuing operations, net of tax (in usd per share)	$ 1.31	$ 1.28			$ 1.28
Environmental remediation charge	$ 34.0	$ 0.0
Restatement Adjustment
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Other charges					$ 0.0
Income before income taxes from continuing operations					6.0
Allocated share-based compensation expense		6.8	$ (6.8)
Income from continuing operations, net of tax		$ (3.0)			$ 3.0
Income from continuing operations, net of tax (in usd per share)		$ (0.01)			$ 0.01
Environmental remediation charge		$ 0.5
Subsequent Event | Restatement Adjustment
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Operating expenses	1.4
Other charges	5.0
Amortization of intangible assets	1.4
Increase (decrease) in health care insurance liabilities	0.5
Income before income taxes from continuing operations	(5.7)
EMEA | Subsequent Event | Restatement Adjustment
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Increase (decrease) in inventories	2.2
Under Amortized Amortization Expense, Understatement of Accrued Liability, Inventory Adjustment | Subsequent Event | Restatement Adjustment
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Income before income taxes from continuing operations	$ 0.3
Under Reported Customer Rebates | Restatement Adjustment
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Income before income taxes from continuing operations		0.4
Incorrect Share Based Compensation Payout Assumptions | Restatement Adjustment
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Income before income taxes from continuing operations		(6.8)
Other Expense
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Environmental remediation charge		$ 0.5