CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (USD $) In Millions	Total	Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Income	Retained Earnings	Treasury Stock
Balance at Beginning of Year at Dec. 31, 2010		$ 36.5	$ 2,615.4	$ 351.4	$ 6,591.8	$ (1,110.2)
Common Stock Activity		0.2	30.9
Retirement of Repurchased Common Shares		(0.8)	(55.2)		(144.0)
Total Other Comprehensive Income (Loss)	110.4			110.4
Net Income	284.2				284.2
Dividends to Stockholders (per common share: $0.550; $0.470; $0.395)					(121.0)
Purchases of Treasury Stock						(419.9)
Balance at End of Period at Dec. 31, 2011	8,169.7	35.9	2,591.1	461.8	6,611.0	(1,530.1)
Common Stock Activity		0.1	16.6
Retirement of Repurchased Common Shares		0	0		0
Total Other Comprehensive Income (Loss)	166.2			166.2
Net Income	894.4				894.4
Dividends to Stockholders (per common share: $0.550; $0.470; $0.395)					(133.8)
Purchases of Treasury Stock						(500.6)
Balance at End of Period at Dec. 31, 2012	8,612.6	36.0	2,607.7	628.0	7,371.6	(2,030.7)
Common Stock Activity		0.1	26.4
Retirement of Repurchased Common Shares		0	0		0
Total Other Comprehensive Income (Loss)	(373.0)			(373.0)
Net Income	858.1				858.1
Dividends to Stockholders (per common share: $0.550; $0.470; $0.395)					(146.5)
Purchases of Treasury Stock						(318.6)
Balance at End of Period at Dec. 31, 2013	$ 8,659.1	$ 36.1	$ 2,634.1	$ 255.0	$ 8,083.2	$ (2,349.3)