Condensed Consolidated Statements of Stockholders' Equity Statement - USD ($) $ in Millions	Total		Common Stock	Additional Paid-in Capital	Retained Earnings	Common Stock in Treasury	Accumulated Other Comprehensive Loss, Net of Taxes
Balance at beginning of period at Dec. 31, 2016	$ 609.7		$ 22.8	$ 1,974.1	$ 1,040.0	$ (1,478.1)	$ (949.1)
Effect of contingent stock transactions	1.5		0.2	23.0		(21.7)
Stock issued for share-based incentive compensation	22.3			0.6		21.7
Repurchases of common stock	(305.3)			(54.0)		(251.3)
Recognition of pension items, net of taxes	5.3						5.3
Foreign currency translation adjustments	73.8						73.8
Unrealized (loss) gain on derivative instruments, net of taxes	(50.6)						(50.6)
Net earnings (loss)	61.0	[1]			61.0
Dividends on common stock ($0.32 per share)	(61.8)				(61.8)
Balance at end of period at Jun. 30, 2017	355.9		23.0	1,943.7	1,039.2	(1,729.4)	(920.6)
Balance at beginning of period at Dec. 31, 2017	152.3		23.0	1,939.6	1,735.2	(2,700.6)	(844.9)
Effect of contingent stock transactions	8.5		0.2	14.7		(6.4)
Stock issued for share-based incentive compensation	24.5			0.7		23.8
Repurchases of common stock	(401.8)			80.0		(481.8)
Recognition of pension items, net of taxes	1.1						1.1
Foreign currency translation adjustments	(28.7)						(28.7)
Unrealized (loss) gain on derivative instruments, net of taxes	13.7						13.7
Net earnings (loss)	(86.2)	[1]			(86.2)
Dividends on common stock ($0.32 per share)	(52.4)				(52.4)
Balance at end of period at Jun. 30, 2018	$ (372.4)		$ 23.2	$ 2,035.0	$ 1,593.2	$ (3,165.0)	$ (858.8)

[1] For the six months ended June 30, 2017, there was a revision to net earnings from discontinued operations, net of tax, on the Condensed Consolidated Statement of Operations related to depreciation and amortization on Diversey assets held for sale. Refer to Note 4, "Discontinued Operations, Divestitures and Acquisitions", for additional information.