Supplemental cash flow information (Tables)

9 Months Ended

Sep. 30, 2017

Supplemental Cash Flow Information [Abstract]

Schedule of Cash Flow, Supplemental Disclosures

	Nine Months   Ended September 30,
(In millions)	2017		2016
Cash paid for:
Interest	$	19.8	15.8
Income taxes, net	64.9		55.3