Equity

Changes in accumulated other comprehensive income (loss), net of income taxes, for the years ended December 31, 2018 and 2017 were (in millions):



	Cash Flow Hedge			Available-for-Sale Securities			Defined Benefit Pension Plans and Postemployment Arrangements			Foreign Currency Translation			Total
January 1, 2017	$	(29.5	)	$	(0.8	)	$	(90.6	)	$	(1,235.1	)	$	(1,356.0	)
Other comprehensive income (loss) before reclassifications	—			0.5			(7.2		)	387.1			380.4
Reclassification from accumulated other comprehensive income (loss)	3.2			—			9.4			—			12.6
December 31, 2017	(26.3		)	(0.3		)	(88.4		)	(848.0		)	(963.0		)
Other comprehensive income (loss) before reclassifications	—			—			7.3			(288.9		)	(281.6		)
Reclassification from accumulated other comprehensive income (loss)	4.0			0.3			11.8			—			16.1
December 31, 2018	$	(22.3	)	$	—		$	(69.3	)	$	(1,136.9	)	$	(1,228.5	)

In December 2016, we retired 100 million shares of our treasury stock, which reduced the number of common shares issued and treasury shares held. Upon retirement, the excess of the average cost of the treasury stock over the par value of the common stock was charged to retained earnings. The retirement of the treasury stock had no impact on shareholders’ equity or common stock outstanding. The retired treasury shares are included in the authorized but unissued common shares.