Other Income, Net (Tables)

12 Months Ended

Dec. 31, 2018

Other Income And Expenses [Abstract]

Schedule of Components of Other Income

	Years ended December 31,
	2016			2017			2018
	(In millions)
Securities earnings:
Dividends and interest	$	26.7		$	29.4		$	26.1
Securities transactions, net		.5			.1			12.4
Total		27.2			29.5			38.5
Gain on land sales		—			—			12.5
Insurance recoveries		.4			.4			1.3
Currency transactions, net		5.5			(7.5	)		10.1
Disposal of property and equipment, net		(.3	)		(.5	)		(.3	)
Business interruption insurance proceeds		4.3			—			—
Infrastructure reimbursement		.6			1.0			4.3
Other, net		1.3			2.3			2.8
Total	$	39.0		$	25.2		$	69.2