Recent Accounting Guidance Recent Accounting Guidance (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2017	Sep. 30, 2018	Jan. 01, 2018	Dec. 31, 2017
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Inventories			$ 618.6	$ 585.9	$ 608.6
Prepaid expenses and other			128.5	105.6	63.9
Other assets			503.5	426.7	428.6
Other accrued liabilities			455.3	491.5	489.6
Deferred income taxes			149.3	155.9	152.9
Retained earnings (Accumulated deficit)			123.2	(9.3)	(21.4)
Noncontrolling interests			102.7	$ 131.8	131.7
Calculated under Revenue Guidance in Effect before Topic 606 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Inventories			643.9		608.6
Prepaid expenses and other			82.2		63.9
Other assets			505.8		428.6
Other accrued liabilities			453.6		489.6
Deferred income taxes			146.2		152.9
Retained earnings (Accumulated deficit)			109.1		(21.4)
Noncontrolling interests			102.5		131.7
Accounting Standards Update 2014-09 [Member] | Difference between Revenue Guidance in Effect before and after Topic 606 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Inventories			(25.3)		(22.7)
Prepaid expenses and other			46.3		41.7
Other assets			(2.3)		(1.9)
Other accrued liabilities			1.7		1.9
Deferred income taxes			3.1		3.0
Retained earnings (Accumulated deficit)			14.1		12.1
Noncontrolling interests			$ 0.2		$ 0.1
Operating Income (Loss) [Member] | Accounting Standard 2017-07 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Effect of adoption, quantification	$ 0.1	$ (0.4)
Other Expense [Member] | Accounting Standard 2017-07 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Effect of adoption, quantification	$ 0.1	$ 0.4