Guarantees (Details) - USD ($) $ in Millions		9 Months Ended
		Sep. 30, 2018	Sep. 30, 2017
Movement in Standard Product Warranty Accrual [Roll Forward]
BALANCE AT JANUARY 1,		$ 14.0	$ 13.8
Provision		9.5	9.6
Expenditures/other		(14.9)	(8.2)
Acquisitions	[1]	52.8	0.0
BALANCE AT SEPTEMBER 30,	[2]	$ 61.4	$ 15.2

[1] (a) The acquisition amount disclosed relates to the Aclara acquisition. Refer to Note 3 – Business Acquisitions for additional information

[2] (b) Refer to Note 7 – Other Accrued Liabilities and Note 8 – Other Non-Current Liabilities for a breakout of short-term and long-term warranties.