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Commitments and Contingencies (Tables)
 12 Months Ended
Dec. 31, 2020
Commitments and Contingencies Disclosure [Abstract]  
Components of Lease Cost, Supplemental Cash Flow and Other Information Related to Leases
The components of lease cost was as follows:
In millionsDecember 31,
2020		December 31,
2019
Operating lease cost$32.5 $32.5 
Sublease income(1.0)(1.0)
Total lease cost$31.5 $31.5 
Supplemental cash flow information related to leases was as follows:
In millionsDecember 31,
2020		December 31,
2019
Operating cash flows from operating leases$28.5 $26.8 
Right-of-use assets obtained in exchange for lease obligations$13.6 $91.1 
Other information related to leases was as follows:
December 31,
2020		December 31,
2019
Weighted-average remaining lease term of operating leases (years)4.75.2
Weighted-average discount rate of operating leases5.5 %6.3 %
Future Minimum Lease Commitments Under Non-cancelable Operating Leases
Future minimum lease commitments under non-cancelable operating leases as of December 31, 2020 were as follows:
In millions
2021$26.2 
202222.9 
202319.5 
202414.8 
20256.0 
Thereafter9.5 
Total lease payments98.9 
Less: imputed interest(11.7)
Total$87.2 
Changes in Carrying Amount of Service and Product Warranties
The changes in the carrying amount of service and product warranties for the years ended December 31, 2020, 2019 and 2018 were as follows:
Years ended December 31
In millions202020192018
Beginning balance$32.1 $33.9 $38.1 
Service and product warranty provision55.5 53.8 50.8 
Payments(51.1)(55.5)(54.6)
Foreign currency translation0.5 (0.1)(0.4)
Ending balance$37.0 $32.1 $33.9