CONSOLIDATED STATEMENT OF EQUITY - USD ($) $ in Millions	Total	Common Stock	Capital In Excess of Par Value	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Common Stock Held In Treasury
Balance at Dec. 31, 2012	$ 1,640.9	$ 12.7	$ 545.4	$ 1,900.9	$ (112.9)	$ (705.2)
Increase (Decrease) in Shareholders' Equity
Net income	212.6			212.6
Other comprehensive income (loss)	14.2				14.2
Cash dividends declared on common stock	(108.4)			(108.4)
Stock incentive programs and related tax withholdings	(13.3)	0.1	(13.4)
Excess tax benefit from share-based payment arrangements	(0.3)		(0.3)
Share-based compensation	16.4		16.4
Purchase of common stock	(77.3)					(77.3)
Balance at Dec. 31, 2013	1,684.8	$ 12.8	548.1	2,005.1	(98.7)	(782.5)
Increase (Decrease) in Shareholders' Equity
Net income	191.1			191.1
Other comprehensive income (loss)	(193.0)				(193.0)
Cash dividends declared on common stock	(109.4)			(109.4)
Stock incentive programs and related tax withholdings	(1.5)		(1.5)
Excess tax benefit from share-based payment arrangements	0.7		0.7
Share-based compensation	12.4		12.4
Purchase of common stock	(152.1)					(152.1)
Balance at Dec. 31, 2014	1,433.0	$ 12.8	559.7	2,086.8	(291.7)	(934.6)
Increase (Decrease) in Shareholders' Equity
Net income	239.3			239.3
Other comprehensive income (loss)	(218.2)				(218.2)
Cash dividends declared on common stock	(110.1)			(110.1)
Stock incentive programs and related tax withholdings	(6.8)		(6.8)
Excess tax benefit from share-based payment arrangements	1.9		1.9
Share-based compensation	18.4		18.4
Purchase of common stock	(150.1)					(150.1)
Balance at Dec. 31, 2015	$ 1,207.4	$ 12.8	$ 573.2	$ 2,216.0	$ (509.9)	$ (1,084.7)