Basis of Presentation (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Jan. 01, 2018	Dec. 31, 2017
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Other current liabilities	$ 433.1		$ 433.1			$ 531.4
Inventories	846.5		$ 846.5			728.9
Document Period End Date			Sep. 30, 2018
Total net sales	1,119.0	$ 1,122.7	$ 3,288.8	$ 3,359.4
Cost of Services	451.6	$ 470.7	1,377.5	$ 1,362.1
Finance lease receivables	14.9		14.9			14.4
Restricted cash	139.3		139.3			8.0
Accounting Standards Update 2017-12 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total net sales	(0.4)		2.4
Cost of Services	$ (0.7)		$ (0.6)
Retained Earnings [Member] | Accounting Standards Update 2018-02
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets					$ 29.0
Retained Earnings [Member] | Accounting Standards Update 2014-09 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets					$ 4.6
Repairable Service Parts Inventory Error Correction
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Inventories						8.1
Other current liabilities and retained earnings						$ 8.1
Impact of Restatement on Earnings Per Share, Diluted		$ 0.01		$ 0.02
Restatement of Prior Year Income, Net of Tax		$ 0.6		$ 1.9
Impact of Restatement on Earnings Per Share, Basic		$ 0.01		$ 0.02
Repairable Service Parts Inventory Error Correction | Cost of sales - services
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Restatement of Prior Year Income, Gross		$ 1.0		$ 3.0