SHAREHOLDERS’ EQUITY

On April 26, 2018, our board of directors authorized a share repurchase program for the purchase of shares of common stock at an aggregate price of up to $500.0 million. This program will terminate upon the purchase of $500.0 million of our common stock. For the six months ended June 30, 2018, 0.3 million shares were repurchased and retired at a cost of $9.1 million. As of June 30, 2018, we had repurchased a total of $9.1 million of our common stock, representing 0.3 million shares, and $490.9 million of common stock remained authorized to be repurchased.

We issued 0.2 million and 0.9 million shares representing stock options exercised for the six months ended June 30, 2018 and 2017, respectively, with a total value of $2.2 million and $15.8 million, respectively.

In February 2018, the FASB issued ASU 2018-02, “Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income” (ASU 2018-02) which amends ASC 220 “Income Statement—Reporting Comprehensive Income.” This update allows a reclassification from accumulated other comprehensive loss to retained earnings for the stranded tax effects resulting from the U.S. Tax Cuts and Jobs Act (the 2017 Tax Act) during each fiscal year or quarter in which the effect of the lower tax rate is recorded. We adopted this update in March 2018 and reclassified $85.9 million related to the provisional deferred gain resulting from the 2017 Tax Act from accumulated other comprehensive loss to retained earnings.

The following table represents the activity included in accumulated other comprehensive loss:



	Foreign Currency Translation Adjustment (net of taxes)			Unrealized Gains (Losses) on Derivative Contracts (net of taxes)			Pension and Other Postretirement Benefits (net of taxes)			Accumulated Other Comprehensive Loss
	($ in millions)
Balance at January 1, 2017	$	(24.1	)	$	12.8		$	(498.7	)	$	(510.0	)
Unrealized gains (losses):
First quarter	8.3			(3.1		)	—			5.2
Second quarter	28.1			(3.7		)	—			24.4
Reclassification adjustments into income (gains) losses:
First quarter	—			(0.1		)	6.6			6.5
Second quarter	—			(2.3		)	6.8			4.5
Tax (provision) benefit:
First quarter	(2.3		)	1.2			(2.7		)	(3.8		)
Second quarter	(12.2		)	2.3			(2.3		)	(12.2		)
Net change	21.9			(5.7		)	8.4			24.6
Balance at June 30, 2017	$	(2.2	)	$	7.1		$	(490.3	)	$	(485.4	)
Balance at January 1, 2018	$	7.6		$	11.1		$	(503.3	)	$	(484.6	)
Unrealized gains (losses):
First quarter	12.4			2.1			—			14.5
Second quarter	(26.1		)	(0.4		)	—			(26.5		)
Reclassification adjustments into income (gains) losses:
First quarter	—			(2.3		)	9.4			7.1
Second quarter	—			(2.7		)	9.1			6.4
Tax benefit (provision):
First quarter	—			0.1			(4.0		)	(3.9		)
Second quarter	—			0.7			(1.0		)	(0.3		)
Net change	(13.7		)	(2.5		)	13.5			(2.7		)
Income tax reclassification adjustment	15.3			2.4			(103.6		)	(85.9		)
Balance at June 30, 2018	$	9.2		$	11.0		$	(593.4	)	$	(573.2	)

Net income and cost of goods sold included reclassification adjustments for realized gains and losses on derivative contracts from accumulated other comprehensive loss.

Net income and non-operating pension income included the amortization of prior service costs and actuarial losses from accumulated other comprehensive loss.