Other Income, Net (Tables)

9 Months Ended

Sep. 30, 2019

Other Income And Expenses [Abstract]

Schedule of Components of Other Income

		Nine months ended
		September 30,
		2018		2019
	(In millions)
Securities earnings:
Dividends and interest		$	23.5	$	8.7
Securities transactions, net			12.6		.3
Total			36.1		9.0
Currency transactions, net			4.2		5.6
Insurance recoveries			.9		5.2
Infrastructure reimbursement			4.3		9.2
Gain on land sales			12.5		4.4
Other, net			1.8		2.1
Total		$	59.8	$	35.5