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 six months ended June 30, 2011	103.0					103.0
Related to Marketable Securities:
Change in Fair Value					1.7
Reclassification to Earnings					(1.5)
Income Tax Effect					(0.2)
Marketable Securities, Net of Tax	0				0
Related to Employee Benefit Plans					12.7
Income Tax Effect					(4.8)
Related to Employee Benefit Plans, Net of Tax	7.9				7.9
Related to Interest Rate Derivative Instruments:
Change in Fair Value					(1.1)
Income Tax Effect					0.4
Interest Rate Derivative Instruments, Net of Tax	(0.7)				(0.7)
Total Comprehensive Income	110.2
Purchase of Treasury Stock (Share)		543
Purchase of Treasury Stock	(33.3)	0	0	(33.3)
Stock-based Compensation	7.3	0	7.3	0
Treasury Stock Issued Under Stock Plans (Share)		3
Treasury Stock Issued Under Stock Plans	0.1	0	0	0.1
Stock Issued for Employee Stock Purchase Plan (Shares)		33
Stock Issued for Employee Stock Purchase Plan	1.3	0.1	1.2	0
Stock Issued Under Stock Plans (Shares)		646
Stock Issued Under Stock Plans	15.5	0.6	14.9	0
Balances at Jun. 30, 2011	$ 1,206.5	$ 37.7	$ 838.9	$ (79.2)	$ (260.0)	$ 669.1
Balances (Shares) at Jun. 30, 2011		36,063