Basis of Presentation and Responsibility for Interim Financial Statements - Schedule of Impact of ASC 606 on the Condensed Consolidated Balance Sheets (Details) - USD ($) $ in Millions	Sep. 30, 2018	Jan. 01, 2018	Dec. 31, 2017
Assets
Accounts and notes receivable, net	$ 402.4	$ 485.8	$ 483.1
Inventories	387.3	355.3	356.9
Other current assets	135.2	116.1	114.5
Current assets held for sale	0.0	711.8	708.0
Other non-current assets	159.3	136.0	180.9
Non-current assets held for sale	0.0	3,788.0	3,989.6
Liabilities
Other current liabilities	361.1	404.0	401.3
Deferred tax liabilities	106.3	105.0	108.6
Non-current liabilities held for sale	0.0	510.4	537.0
Equity
Retained earnings	$ 107.5	2,267.7	2,481.7
Accounting Standards Update 2016-16
Assets
Accounts and notes receivable, net		0.0
Inventories		0.0
Other current assets		0.0
Current assets held for sale		0.0
Other non-current assets		(44.9)
Non-current assets held for sale		(201.6)
Liabilities
Other current liabilities		0.0
Deferred tax liabilities		(3.7)
Non-current liabilities held for sale		(27.0)
Equity
Retained earnings		(215.8)
Balances without adoption of ASC 606
Assets
Accounts and notes receivable, net			483.1
Inventories			356.9
Other current assets			114.5
Other non-current assets			180.9
Liabilities
Other current liabilities			401.3
Deferred tax liabilities			108.6
Equity
Retained earnings			$ 2,481.7
Effect of Change | Accounting Standards Update 2014-09
Assets
Accounts and notes receivable, net		2.7
Inventories		(1.6)
Other current assets		1.6
Current assets held for sale		3.8
Other non-current assets		0.0
Non-current assets held for sale		0.0
Liabilities
Other current liabilities		2.7
Deferred tax liabilities		0.1
Non-current liabilities held for sale		0.4
Equity
Retained earnings		$ 1.8