Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2013

Fair Value, Assets, Liabilities and Stockholders' Equity Measured on Recurring Basis [Abstract]

Financial Assets And Liabilities Carried At Fair Value

A summary of financial assets and liabilities that are measured at fair value on a recurring basis as of December 31, 2013 and 2012 were as follows ($ in millions):

	Quoted Prices in Active Market (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)	Total
December 31, 2013:
Assets:
Available-for-sale securities	$	385.2	—		—	$	385.2
Currency swap agreement	—		$	0.1	—	0.1
Liabilities:
Deferred compensation plans	—		70.1		—	70.1
December 31, 2012:
Assets:
Available-for-sale securities	$	329.5	—		—	$	329.5
Liabilities:
Deferred compensation plans	—		$	64.5	—	64.5
Currency swap agreement	—		24.9		—	24.9

Carrying Amounts And Fair Values Of Financial Instruments

The carrying amounts and fair values of the Company's financial instruments as of December 31 were as follows ($ in millions):

	2013				2012
	Carrying Amount		Fair Value		Carrying Amount		Fair Value
Financial assets:
Available-for-sale securities	$	385.2	$	385.2	$	329.5	$	329.5
Currency swap agreement	0.1		0.1		N/A		N/A
Liabilities:
Short-term borrowings	62.3		62.3		55.5		55.5
Long-term borrowings	3,436.7		3,877.6		5,287.6		5,917.3
Currency swap agreement	N/A		N/A		24.9		24.9