Consolidated Statements Of Stockholders' Equity (USD $) In Millions	Total	COMMON STOCK, $1 PAR VALUE:	ADDITIONAL PAID-IN CAPITAL:	TREASURY STOCK, AT COST:	RETAINED EARNINGS:	ACCUMULATED OTHER COMPREHENSIVE (LOSS) INCOME:
Balance at Dec. 31, 2011		$ 356.8	$ 52.1		$ 5,174.5	$ (219.0)
Net income	1,111.6				1,111.6
Purchases, shares: 2014-.7; 2013-nil; 2012-4.2				(162.1)
Other comprehensive (loss) income	59.5					59.5
Cash dividends declared on common stock, per share: 2014-$1.86; 2013-$1.70; 2012-$1.58					(559.8)
Treasury stock retirement		(4.2)	(28.0)	162.1	(129.9)
Stock compensation		0.8
Stock compensation and tax benefit			32.5
Balance at Dec. 31, 2012	5,846.9	353.4	56.6		5,596.4	(159.5)
Net income	1,171.3				1,171.3
Other comprehensive (loss) income	168.2					168.2
Cash dividends declared on common stock, per share: 2014-$1.86; 2013-$1.70; 2012-$1.58					(602.6)
Stock compensation		0.9
Stock compensation and tax benefit			49.6
Balance at Dec. 31, 2013	6,634.3	354.3	106.2		6,165.1	8.7
Net income	1,358.8				1,358.8
Purchases, shares: 2014-.7; 2013-nil; 2012-4.2				(42.7)
Other comprehensive (loss) income	(588.5)					(588.5)
Cash dividends declared on common stock, per share: 2014-$1.86; 2013-$1.70; 2012-$1.58					(660.1)
Stock compensation		0.9
Stock compensation and tax benefit			50.5
Balance at Dec. 31, 2014	$ 6,753.2	$ 355.2	$ 156.7	$ (42.7)	$ 6,863.8	$ (579.8)