15. Accumulated Other Comprehensive Income (Loss)

Comprehensive income is defined as net income (loss) and other changes in stockholders’ equity from transactions and other events from sources other than stockholders. The components of, and changes in, accumulated other comprehensive income (loss) were as follows:



(in millions of dollars)	Derivative Financial Instruments			Foreign Currency Adjustments			Unrecognized Pension and Other Post-retirement Benefit Costs			Accumulated Other Comprehensive Income (Loss)
Balance at December 31, 2015	$	0.8		$	(302.7	)	$	(127.3	)	$	(429.2	)
Other comprehensive income (loss) before reclassifications, net of tax	—			16.8			(11.5		)	5.3
Amounts reclassified from accumulated other comprehensive income (loss), net of tax	1.7			—			2.8			4.5
Balance at December 31, 2016	2.5			(285.9		)	(136.0		)	(419.4		)
Other comprehensive loss before reclassifications, net of tax	(3.6		)	(19.5		)	(23.4		)	(46.5		)
Amounts reclassified from accumulated other comprehensive income (loss), net of tax	1.3			—			3.5			4.8
Balance at December 31, 2017	$	0.2		$	(305.4	)	$	(155.9	)	$	(461.1	)

The reclassifications out of accumulated other comprehensive income (loss) for the years ended December 31, 2017, 2016 and 2015 were as follows:



	Year Ended December 31,
(in millions of dollars)	2017			2016			2015
Details about Accumulated Other Comprehensive Income Components	Amount Reclassified from Accumulated Other Comprehensive Income									Location on Income Statement
(Loss) gain on cash flow hedges:
Foreign exchange contracts	$	(1.6	)	$	(2.4	)	$	10.9		Cost of products sold
Tax benefit (expense)	0.3			0.7			(3.2		)	Income tax (benefit) expense
Net of tax	$	(1.3	)	$	(1.7	)	$	7.7
Defined benefit plan items:
Amortization of actuarial loss	$	(4.6	)	$	(3.1	)	$	(3.6	)	(1)
Amortization of prior service cost	(0.4		)	(0.4		)	(0.1		)	(1)
Total before tax	(5.0		)	(3.5		)	(3.7		)
Tax benefit	1.5			$	0.7		$	1.2		Income tax (benefit) expense
Net of tax	$	(3.5	)	$	(2.8	)	$	(2.5	)

Total reclassifications for the period, net of tax	$	(4.8	)	$	(4.5	)	$	5.2


(1)	This accumulated other comprehensive income component is included in the computation of net periodic benefit cost (income) for pension and post-retirement plans (See "Note 5. Pension and Other Retiree Benefits" for additional details).