Fair Value of Assets and Liabilities (Tables)

6 Months Ended

Jun. 30, 2016

Fair Value Disclosures [Abstract]

Summary of Assets and Liabilities Recorded at Fair Market Value

Assets and liabilities subject to fair value measurement are as follows:

	June 30, 2016						December 31, 2015
			Fair Value Measurements Using						Fair Value Measurements Using
	Fair Value		Level 1		Level 2		Fair Value		Level 1		Level 2
Assets
Short-term investments
Certificates of deposit	$	26.6	$	26.6	$	—	$	39.9	$	39.9	$	—
Restricted cash	1,823.0		1,823.0		—		—		—		—
Assets held in rabbi trusts	8.1		8.1		—		9.3		9.3		—
Foreign exchange forward contracts	4.1		—		4.1		3.5		—		3.5
Foreign currency option contracts	—		—		—		7.0		—		7.0
Total	$	1,861.8	$	1,857.7	$	4.1	$	59.7	$	49.2	$	10.5
Liabilities
Deferred compensation	$	8.1	$	8.1	$	—	$	9.3	$	9.3	$	—
Foreign exchange forward contracts (1)	28.9		—		28.9		1.5		—		1.5
Total	$	37.0	$	8.1	$	28.9	$	10.8	$	9.3	$	1.5

Fair value and carrying value of the Company's debt instruments

The fair value and carrying value of the Company’s debt instruments are summarized as follows:

	June 30, 2016				December 31, 2015
	Fair Value		Carrying Value		Fair Value		Carrying Value
Notes payable	$	39.0	$	39.0	$	32.0	$	32.0
Long-term debt	2,270.0		2,274.0		613.0		606.2
Total debt instruments	$	2,309.0	$	2,313.0	$	645.0	$	638.2