guidance for each item. From time to time, lease arrangements allow for, and the Company executes, the purchase of the underlying leased asset. Lease arrangements may also contain renewal options or early termination options. As part of its lease liability and right-of-use asset calculation, consideration is given to the likelihood of exercising any extension or termination options. Leases with expected durations of less than 12 months from inception (i.e. short-term leases) are excluded from the Company’s calculation of lease liabilities and right-of-use assets, as permitted by ASC 842, Leases. The following is a summary of the Company's right-of-use-assets and lease liabilities:


(Millions of Dollars)	2021	2020
Right-of-use assets	$433.3	$437.7
Lease liabilities	$446.5	$449.3
Weighted-average incremental borrowing rate	3.5%	3.6%
Weighted-average remaining term	6 years	7 years

Right-of-use assets are included within Other assets in the Consolidated Balance Sheets, while lease liabilities are included within Accrued expenses and Other liabilities, as appropriate. The Company determines its incremental borrowing rate based on interest rates from its debt issuances, taking into consideration adjustments for collateral, lease terms and foreign currency.

As a result of acquiring right-of-use assets from new leases entered into during the years ended January 1, 2022 and January 2, 2021, the Company's lease liabilities increased approximately $86.2 million and $91.0 million, respectively. The Company acquired $38.9 million specifically from the acquisition of MTD. As of January 1, 2022 and January 2, 2021, $77.7 million and $85.1 million of right-of-use assets, respectively, were reclassed to assets held-for-sale. As of January 1, 2022 and January 2, 2021, $75.1 million and $85.0 million of lease liabilities, respectively, were reclassed to liabilities held-for-sale.

The Company is a party to leases for one of its major distribution centers and two of its office buildings in which the periodic rental payments vary based on interest rates (i.e. LIBOR). The leases qualify as operating leases for accounting purposes.

The following is a summary of the Company's total lease cost for the years ended January 1, 2022, January 2, 2021, and December 28, 2019:


(Millions of Dollars)	2021		2020		2019
Operating lease cost	$	155.9	$	155.4	$	151.6
Short-term lease cost	25.8		26.3		26.6
Variable lease cost	5.9		7.0		8.5
Sublease income	(1.7)		(0.8)		(2.8)
Total lease cost	$	185.9	$	187.9	$	183.9

The amounts above are inclusive of lease cost for discontinued operations amounting to $22.9 million in 2021, $25.4 million in 2020, and $36.0 million in 2019.

During 2021, 2020, and 2019, the Company paid approximately $129.4 million, $117.9 million, and $128.2 million respectively, relating to leases included in the measurement of its lease liability and right-of-use asset. Lease payments relating to discontinued operations during 2021, 2020, and 2019 were $29.0 million, $31.9 million, and $26.2 million respectively.

The amounts above include undiscounted future lease obligations for discontinued operations totaling $80.7 million; $25.4 million in 2022, $19.1 million in 2023, $14.0 million in 2024, $9.5 million in 2025, $6.1 million in 2026, and $6.6 million thereafter.

The amounts above include future marketing commitments for discontinued operations totaling $1.0 million; $0.9 million in 2022 and $0.1 million in 2023.


(Millions of Dollars)	Term	Maximum Potential Payment		Carrying Amount of Liability
Guarantees on the residual values of leased properties	one to five years	$	89.6	$	—
Standby letters of credit	Up to three years	165.7		—
Commercial customer financing arrangements	Up to six years	69.2		8.5
Total		$	324.5	$	8.5

The Company has guaranteed a portion of the residual values of certain leased assets including the previously discussed leases for one of its major distribution centers and two of its office buildings. The lease guarantees are for an amount up to $89.6 million while the fair value of the underlying assets is estimated at $116.2 million. The related assets would be available to satisfy the guarantee obligations and therefore it is unlikely the Company will incur any future loss associated with these guarantees.

The Company has issued $165.7 million in standby letters of credit that guarantee future payments which may be required under certain insurance programs and in relation to certain environmental remediation activities described more fully in Note S, Contingencies.

The Company provides various limited and full recourse guarantees to financial institutions that provide financing to U.S. and Canadian Mac Tool distributors and franchisees for their initial purchase of the inventory and trucks necessary to function as a distributor and franchisee. In addition, the Company provides limited and full recourse guarantees to financial institutions that extend credit to certain end retail customers of its U.S. Mac Tool distributors and franchisees. The gross amount guaranteed in these arrangements is $69.2 million and the $8.5 million carrying value of the guarantees issued is recorded in Other liabilities in the Consolidated Balance Sheets.

The Company provides warranties on certain products across its businesses. The types of product warranties offered generally range from one year to limited lifetime. There are also certain products with no warranty. Further, the Company sometimes incurs discretionary costs to service its products in connection with product performance issues. Historical warranty and service claim experience forms the basis for warranty obligations recognized. Adjustments are recorded to the warranty liability as new information becomes available.


(Millions of Dollars)	2021		2020		2019
Balance beginning of period	$	108.8	$	95.2	$	97.1
Warranties and guarantees issued	150.8		127.7		127.2
Warranties assumed in acquisitions	33.4		—		—
Warranty payments and currency	(157.8)		(114.1)		(129.1)
Balance end of period	$	135.2	$	108.8	$	95.2