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LEASES AND OTHER COMMITMENTS (Tables)
6 Months Ended
Jun. 30, 2021
Commitments and Contingencies Disclosure [Abstract]  
Lessee, Operating Lease, Liability, Maturity [Table Text Block] As of June 30, 2021, reconciliation of lease payments and operating lease liabilities is provided below:
(Dollars in millions)Operating lease liabilities
Remainder of 2021$31 
202248 
202334 
202420 
202513 
2026 and beyond31 
Total lease payments177 
Less: amounts of lease payments representing interest16 
Present value of future lease payments161 
Less: current obligations under leases53 
Long-term lease obligations$108 
Lease, Cost [Table Text Block] Lease costs during the period and other information is provided below:
Second QuarterFirst Six Months
(Dollars in millions)2021202020212020
Lease costs:
Operating lease costs$18 $18$36 $37
Short-term lease costs11 1019 19
Sublease income(1)(1)(2)(2)
Total$28 $27$53 $54
Other operating lease information:
Cash paid for amounts included in the measurement of lease liabilities$18 $18$35 $36
Right-to-use assets obtained in exchange for new lease liabilities$26 $14$34 $30
Weighted-average remaining lease term, in years55
Weighted-average discount rate3.5 %3.9 %