ACCUMULATED OTHER COMPREHENSIVE LOSS

3 Months Ended

Mar. 31, 2018

The following summary sets forth the components of accumulated other comprehensive loss, net of tax:



	Currency Translation Adjustments and Other			Net Actuarial Loss ⁽¹⁾		Prior Service (Cost)/ Credit ⁽¹⁾		Accumulated Other Comprehensive Loss
	(In thousands)
December 31, 2017	$	(140,438	)	(560,153	)	(6,910	)	(707,501	)
Amortization	—			5,517		89		5,606
Other current period change	11,892			—		—		11,892
March 31, 2018	$	(128,546	)	(554,636	)	(6,821	)	(690,003	)



	Currency Translation Adjustments and Other			Net Actuarial Loss ⁽¹⁾		Prior Service Credit ⁽¹⁾		Accumulated Other Comprehensive Loss
	(In thousands)
December 31, 2016	$	(206,610	)	(620,292	)	(7,130	)	(834,032	)
Amortization	—			5,011		53		5,064
Other current period change	15,742			—		—		15,742
March 31, 2017	$	(190,868	)	(615,281	)	(7,077	)	(813,226	)

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(1)	These amounts are included in the computation of net pension expense. See Note 14, "Employee Benefit Plans," for further information.

The gain from currency translation adjustments in the three months ended March 31, 2018 of $12 million was primarily due to the strengthening of the British Pound against the U.S. Dollar, partially offset by the weakening of the Canadian Dollar against the U.S. Dollar. The gain from currency translation adjustments in the three months ended March 31, 2017 of $16 million was due to the strengthening of the British Pound and the Canadian Dollar against the U.S. Dollar.