The components of lease expense are as follows:


	Three Months Ended September 30,				Nine Months Ended September 30,
In millions	2020		2019		2020		2019
Operating lease expense	$	14.1	$	13.6	$	42.9	$	40.4
Finance lease expense amortization of leased assets	0.3		0.3		0.9		0.9

Short-term and variable lease expense	—		0.2		0.1		0.5
Sublease income	(0.1)		(0.1)		(0.3)		(0.4)
Total	$	14.3	$	14.0	$	43.6	$	41.4

The following table summarizes the remaining lease term and discount rate assumptions used to develop the present value of lease liabilities:


	September 30, 2020
Weighted-average remaining lease term (years)
Operating leases	7.4
Finance leases	4.5
Weighted-average discount rate
Operating leases	2.9	%
Finance leases	1.5	%

Scheduled payments of lease liabilities are as follows:


In millions	Operating Leases		Finance Leases		Total
Remaining 2020	$	14.2	$	0.1	$	14.3
2021	51.1		0.4		51.5
2022	43.9		0.2		44.1
2023	37.7		0.2		37.9
2024	32.9		0.1		33.0
Thereafter	100.1		0.2		100.3
Total lease payments	279.9		1.2		281.1
Less: Present value discount	(25.4)		—		(25.4)
Present value lease liabilities	$	254.5	$	1.2	$	255.7

Scheduled payments of lease liabilities are as follows:


In millions	Operating Leases		Finance Leases		Total
Remaining 2020	$	14.2	$	0.1	$	14.3
2021	51.1		0.4		51.5
2022	43.9		0.2		44.1
2023	37.7		0.2		37.9
2024	32.9		0.1		33.0
Thereafter	100.1		0.2		100.3
Total lease payments	279.9		1.2		281.1
Less: Present value discount	(25.4)		—		(25.4)
Present value lease liabilities	$	254.5	$	1.2	$	255.7