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LEASES (Tables)
 12 Months Ended
Dec. 31, 2021
Leases [Abstract]  
Summary of Components of Lease Expense
The following table summarizes the components of lease expense:
Year Ended December 31,
Dollars in Millions202120202019
Operating lease cost$220 $194 $115 
Variable lease cost44 50 25
Short-term lease cost17 19 20
Sublease income(7)(4)(4)
Total operating lease expense$274 $259 $156 
Supplemental balance sheet information related to leases was as follows:
December 31,
20212020
Weighted average remaining lease term10 years9 years
Weighted average discount rate3 %3 %
Balance Sheet Information Related to Leases
Operating lease right-of-use assets and liabilities were as follows:
December 31,
Dollars in Millions20212020
Other non-current assets$919 $859 
Other current liabilities169 164 
Other non-current liabilities874 833 
Total liabilities$1,043 $997 
Summary of Operating Lease Maturity
Future lease payments for non-cancellable operating leases as of December 31, 2021 were as follows:
Dollars in Millions
2022$190 
2023176 
2024130 
2025105 
202696 
Thereafter494 
Total future lease payments1,191 
Less imputed interest(148)
Total lease liability$1,043