Supplemental cash flow information (Tables)

6 Months Ended

Jun. 30, 2017

Supplemental Cash Flow Information [Abstract]

Schedule of Cash Flow, Supplemental Disclosures

	Six Months   Ended June 30,
(In millions)	2017		2016
Cash paid for:
Interest	$	10.7	9.6
Income taxes, net	50.4		37.8