Accumulated Other Comprehensive Loss (Tables)

9 Months Ended

Sep. 30, 2017

Accumulated Other Comprehensive Loss [Abstract]

Components of Accumulated Other Comprehensive Loss

					Deferred
					Loss on
		Foreign	Retirement and		Interest
		Currency	Postretirement		Rate
		Translation	Benefit Plan		Derivative
(Thousands of dollars)		Gains (Losses)	Adjustments		Hedges		Total
Balance at December 31, 2016	$	(446,555)	(171,305)		(10,352)		(628,212)
2017 components of other comprehensive income (loss):
Before reclassifications to income		194,094	3		–		194,097
Reclassifications to income		–	7,166	1	1,445	2	8,611
Net other comprehensive income		194,094	7,169		1,445		202,708
Balance at September 30, 2017	$	(252,461)	(164,136)		(8,907)		(425,504)

1Reclassifications before taxes of $11,039 for the nine-month period ended September 30, 2017 are included in the computation of net periodic benefit expense.  See Note G for additional information.  Related income taxes of $3,873 for the nine-month period ended September 30, 2017 are included in Income tax expense.

2Reclassifications before taxes of $2,222 for the nine-month period ended September 30, 2017 are included in Interest expense, net.  Related income taxes of $777 for the nine-month period ended September 30, 2017 are included in Income tax expense.