Long-term Debt (Tables)

9 Months Ended

Sep. 30, 2020

Debt Disclosure [Abstract]

Schedule of Long-term Debt

(in millions)					Fair Value(1)
	September 30, 2020		December 31, 2019		September 30, 2020		December 31, 2019
2.75% Notes due 2030	$	750.0	$	—	$	794.4	$	—
3.75% Notes due 2027	600.0		600.0		672.4		623.4
3.5% Notes due 2024	400.0		400.0		430.7		414.2
3.75% Notes due 2022	350.0		350.0		367.8		361.4
5.125% Notes due 2020	—		250.0		—		255.0
Unamortized discount, debt issuance costs and other	(19.7)		(8.4)
Total long term-debt	2,080.3		1,591.6
Less: current portion of long-term debt	0.9		250.2
Total long term-debt, net of current portion	$	2,079.4	$	1,341.4

⁽¹⁾The fair value is estimated based on current yield rates plus the Company’s estimated credit spread available for financings with similar terms and maturities. Based on these inputs, the debt instruments are classified as Level 2 in the fair value hierarchy.