CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (USD $) In Millions, except Share data in Thousands	Total	Common Stock	Capital in Excess of Par Value	Treasury Stock, at Cost	Accumulated Other Comprehensive Loss	Retained Earnings
Balances at Dec. 31, 2010	$ 1,105.4	$ 37.0	$ 815.5	$ (46.0)	$ (267.2)	$ 566.1
Balances (Shares) at Dec. 31, 2010		35,924
Net income for the nine months ended September 30, 2011	180.5					180.5
Related to Marketable Securities:
Change in Fair Value					(0.1)
Reclassification to Earnings					(2.7)
Income Tax Effect					1.0
Marketable Securities, Net of Tax	(1.8)				(1.8)
Related to Employee Benefit Plans					40.2
Income Tax Effect					(15.1)
Related to Employee Benefit Plans, Net of Tax	25.1				25.1
Related to Interest Rate Derivative Instruments:
Change in Fair Value					(19.4)
Income Tax Effect					7.3
Interest Rate Derivative Instruments, Net of Tax	(12.1)				(12.1)
Total Comprehensive Income	191.7
Purchase of Treasury Stock (Share)		1,030
Purchase of Treasury Stock	(61.6)	0	0	(61.6)
Stock-based Compensation	9.5	0	9.5	0
Treasury Stock Issued Under Stock Plans (Share)		3
Treasury Stock Issued Under Stock Plans	0.2	0	0	0.2
Stock Issued for Employee Stock Purchase Plan (Shares)		63
Stock Issued for Employee Stock Purchase Plan	2.8	0.1	2.7	0
Stock Issued Under Stock Plans (Shares)		685
Stock Issued Under Stock Plans	16.3	0.7	15.6	0
Balances at Sep. 30, 2011	$ 1,264.3	$ 37.8	$ 843.3	$ (107.4)	$ (256.0)	$ 746.6
Balances (Shares) at Sep. 30, 2011		35,645