Other Income, Net (Tables)

9 Months Ended

Sep. 30, 2016

Other Income And Expenses [Abstract]

Schedule of Components of Other Income

	Nine months ended September 30,
	2015		2016
	(In millions)
Securities earnings:
Dividends and interest	$	19.8	$	20.3
Securities transactions, net		.1		.2
Total		19.9		20.5
Currency transactions, net		.6		3.2
Insurance recoveries		3.5		.4
Business interruption insurance proceeds		—		3.4
Other, net		1.4		.8
Total	$	25.4	$	28.3