Debt (Tables)

12 Months Ended

Dec. 31, 2020

Debt Disclosure [Abstract]

Debt and Average Interest Rates on Debt Outstanding

Debt and the average interest rates on debt outstanding were as follows:

In millions	Average interest rate at	Maturity year	December 31
	December 31, 2020		2020		2019
Commercial paper	N/A	2023	$	—	$	117.8
Revolving credit facilities	1.244%	2023	36.1		35.8
Term loans	1.224%	2023	200.0		200.0
Senior notes - fixed rate (1)	3.625%	2020	—		74.0
Senior notes - fixed rate (1)	5.000%	2021	103.8		103.8
Senior notes - fixed rate (1)	3.150%	2022	88.3		88.3
Senior notes - fixed rate (1)	4.650%	2025	19.3		19.3
Senior notes - fixed rate (1)	4.500%	2029	400.0		400.0
Unamortized issuance costs and discounts	N/A	N/A	(7.9)		(9.9)
Total debt			$	839.6	$	1,029.1
(1) Senior notes are guaranteed as to payment by Pentair plc.

Debt Outstanding Matures on Calendar Year Basis

Debt outstanding, excluding unamortized issuance costs and discounts, at December 31, 2020 matures on a calendar year basis as follows:

In millions	2021		2022		2023		2024		2025		Thereafter		Total
Contractual debt obligation maturities	$	103.8	$	88.3	$	236.1	$	—	$	19.3	$	400.0	$	847.5