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LEASES (Narrative) (Details)
$ in Millions
12 Months Ended
Dec. 31, 2021
USD ($)
option
Dec. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
Lessee, Lease, Description [Line Items]      
Renewal term 10 years    
Operating lease cost $ 1 $ 1 $ 1
Number of renewal options | option 1    
Operating lease income $ 1 $ 1 $ 1
Lessor, Operating Lease, Payments, Fiscal Year Maturity      
2022 1    
2023 1    
2024 1    
2025 1    
2026 1    
Thereafter $ 2    
Office Facility and Utility Property      
Lessee, Lease, Description [Line Items]      
Renewal term 3 years    
Minimum      
Lessee, Lease, Description [Line Items]      
Remaining lease term 1 year    
Minimum | Office Facility and Utility Property      
Lessee, Lease, Description [Line Items]      
Remaining lease term 2 years    
Maximum      
Lessee, Lease, Description [Line Items]      
Remaining lease term 20 years    
Maximum | Office Facility and Utility Property      
Lessee, Lease, Description [Line Items]      
Remaining lease term 21 years