Supplemental Cash Flow Information (Tables)

12 Months Ended

Dec. 31, 2017

Supplemental Cash Flow Elements [Abstract]

Changes In Operating Assets And Liabilities, Net of the Effect of Deconsolidated Subsidiaries

Changes in operating assets and liabilities as disclosed in the statements of cash flows, for the fiscal years 2017, 2016 and 2015, respectively, were as follows: 

	2017			2016			2015
	(In millions of dollars)
Increase in trade accounts receivable	$	(126.2	)	$	(93.9	)	$	(64.2	)
Increase in prepaid expenses and other assets	(13.8		)	(11.0		)	(5.2		)
Increase in accounts payable and accrued liabilities	63.9			58.4			50.9
Increase (decrease) in accrued payroll and related taxes	32.9			1.9			(23.7		)
Increase (decrease) in accrued insurance	6.7			2.4			(4.2		)
Increase in income and other taxes	7.1			2.2			0.5
Total changes in operating assets and liabilities, net of acquisition	$	(29.4	)	$	(40.0	)	$	(45.9	)