Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2017

Fair Value Disclosures [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 were as follows ($ in millions):

	Quoted Prices in Active Market (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total
June 30, 2017:
Assets:
Available-for-sale securities	$	146.2	$	49.2	$	—	$	195.4
Liabilities:
Deferred compensation plans	—		55.6		—		55.6
December 31, 2016:
Assets:
Available-for-sale securities	$	117.8	$	52.3	$	—	$	170.1
Liabilities:
Deferred compensation plans	—		52.2		—		52.2

Carrying Amounts And Fair Values Of Financial Instruments

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

	June 30, 2017				December 31, 2016
	Carrying Amount		Fair Value		Carrying Amount		Fair Value
Assets:
Available-for-sale securities	$	195.4	$	195.4	$	170.1	$	170.1
Liabilities:
Notes payable and current portion of long-term debt	169.5		169.5		2,594.8		2,594.8
Long-term debt	11,422.5		11,860.8		9,674.2		10,095.1