Balance Sheet Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Receivables, net:
Customers	$ 1,735.7	$ 1,448.3
Indirect taxes	152.1	99.1
Other	136.8	144.8
Gross receivables	2,024.6	1,692.2
Bad debt allowance(a)	(5.7)	(2.9)
Total receivables, net	2,018.9	1,689.3
Inventories, net:
Raw material and supplies	469.7	378.6
Work in progress	126.7	102.9
Finished goods	183.0	174.9
FIFO inventories	779.4	656.4
LIFO reserve	(13.1)	(15.2)
Total inventories, net	766.3	641.2
Prepayments and other current assets:
Prepaid tooling	81.9	77.5
Prepaid taxes	5.3	8.0
Other	58.2	51.9
Total prepayments and other current assets	145.4	137.4
Property, plant and equipment, net:
Property, plant and equipment, gross	4,045.6	3,494.9
Accumulated depreciation	(1,391.7)	(1,137.5)
Property, plant & equipment, net, excluding tooling	2,653.9	2,357.4
Tooling, net of amortization	209.9	144.4
Property, plant & equipment, net	2,863.8	2,501.8
Investments and other long-term receivables:
Investment in equity affiliates	239.6	218.9
Other long-term receivables	307.8	283.3
Total investments and other long-term receivables	547.4	502.2
Other non-current assets:
Deferred income taxes	121.2	424.0
Asbestos insurance asset	127.7	178.7
Other	209.8	150.7
Total other non-current assets	458.7	753.4
Accounts payable and accrued expenses:
Trade payables	1,545.6	1,259.4
Payroll and employee related	239.7	206.4
Indirect taxes	111.0	63.9
Product warranties	69.0	63.9
Customer related	75.7	52.8
Asbestos-related liability	52.5	51.7
Interest	22.9	22.9
Retirement related	17.2	18.1
Dividends payable to noncontrolling shareholders	17.7	15.7
Unrecognized tax benefits	0.8	15.5
Insurance	10.1	7.8
Severance	5.8	6.4
Derivatives	5.0	1.2
Other	97.3	61.6
Total accounts payable and accrued expenses	2,270.3	1,847.3
Other non-current liabilities:
Deferred income taxes	61.4	54.2
Deferred revenue	52.4	33.5
Product warranties	42.5	31.4
Other	199.2	156.6
Total other non-current liabilities	355.5	275.7
Bad debt allowance
Trade payables for capital expenditures	106.5	85.3
Interest costs capitalized	19.7	14.1	$ 16.5
Land [Member]
Property, plant and equipment, net:
Property, plant and equipment, gross	115.7	111.0
Building [Member]
Property, plant and equipment, net:
Property, plant and equipment, gross	783.5	670.6
Machinery and equipments
Property, plant and equipment, net:
Property, plant and equipment, gross	2,734.4	2,371.2
Capital leases
Property, plant and equipment, net:
Property, plant and equipment, gross	1.5	3.9
Construction in progress
Property, plant and equipment, net:
Property, plant and equipment, gross	410.5	338.2
Allowance for Doubtful Accounts [Member]
Bad debt allowance
Beginning balance, January 1	(2.9)	(1.9)	(2.3)
Provision	(2.7)	(3.2)	(0.5)
Write-offs	0.1	0.2	0.7
Business divestiture	0.0	2.0	0.0
Translation adjustment and other	(0.2)	0.0	0.2
Ending balance, December 31	$ (5.7)	$ (2.9)	$ (1.9)