Debt

3 Months Ended

Mar. 31, 2021

Debt Disclosure [Abstract]

Debt

Debt

In August 2020, we issued and sold $1.250 billion aggregate principal amount of senior unsecured notes due 2030 and $750 million aggregate principal amount of senior unsecured notes due 2050. Long-term debt in connection with our senior unsecured notes (collectively, the "Notes"), net of underwriting discounts and offering expenses, consists of the following:

	March 31,		December 31,
(In millions)	2021		2020
1.750% Senior Notes due September 2030	$	1,239.0	$	1,238.7
2.800% Senior Notes due September 2050	739.9		739.8
	$	1,978.9	$	1,978.5

Interest expense related to the Notes for the three months ended March 31, 2021 was $11.1 million.