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LEASES AND OTHER COMMITMENTS Leases (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Leases [Abstract]    
Operating Lease, Right-of-Use Asset $ 176 $ 197
Operating Lease, Right-of-Use Asset, Reclassified 9 8
Lessee, Operating Lease, Liability, to be Paid, Year One 60 62
Lessee, Operating Lease, Liability, Payments, Due Year Two 44 49
Lessee, Operating Lease, Liability, Payments, Due Year Three 31 38
Lessee, Operating Lease, Liability, Payments, Due Year Four 18 25
Lessee, Operating Lease, Liability, Payments, Due Year Five 12 14
Lessee, Operating Lease, Liability, Payments, Due after Year Five 28 30
Lessee, Operating Lease, Liability, Payments, Due 193 218
Lessee, Operating Lease, Liability, Undiscounted Excess Amount 14 22
Operating Lease, Cost 73 70
Short-term Lease, Cost 37 40
Sublease Income (4) (2)
Lease, Cost 106 108
Operating Lease, Payments 72 72
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability $ 55 $ 54
Operating Lease, Weighted Average Remaining Lease Term 5 years 5 years
Operating Lease, Weighted Average Discount Rate, Percent 3.60% 4.00%
Other Noncurrent Liabilities [Member]    
Lessor, Lease, Description [Line Items]    
Operating Lease, Liability $ 179 $ 196
Operating Lease, Liability, Noncurrent 123 141
Other Current Liabilities [Member]    
Lessor, Lease, Description [Line Items]    
Operating Lease, Liability, Current $ 56 $ 55