Goodwill and Other Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Intangible Assets and Goodwill

The following table shows the change in goodwill and other intangible assets:

	Three Months Ended March 31,
Millions	2017								2016
	Goodwill		Other intangible assets			Total			Goodwill		Other intangible assets			Total
Beginning balance	$	31.7	$	24.2		$	55.9		$	24.1	$	31.3		$	55.4
Add: Amounts held for sale at          beginning of the period(1)	—		—			—			—		.4			.4
Acquisition of businesses	—		—			—			—		3.9			3.9
Amortization, including foreign    currency translation	—		(2.9		)	(2.9		)	—		(3.1		)	(3.1		)
Less: Amounts held for sale at end          of the period(1)	—		—			—			—		.3			.3
Ending balance	$	31.7	$	21.3		$	53.0		$	24.1	$	32.2		$	56.3

⁽¹⁾ See Note 17 — “Held for Sale and Discontinued Operations”.