Annual report pursuant to Section 13 and 15(d)

LEASES - UNDISCOUNTED CASH FLOWS (Details)

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LEASES - UNDISCOUNTED CASH FLOWS (Details) - USD ($)
$ in Millions
Dec. 31, 2019
Dec. 31, 2018
Undiscounted cash flows    
2020 $ 58  
2021 57  
2022 52  
2023 48  
2024 45  
Thereafter 268  
Total lease payments 528  
Less imputed interest (102)  
Total $ 426  
Operating Lease, Liability, Statement of Financial Position [Extensible List] us-gaap:OperatingLeaseLiabilityCurrent us-gaap:OperatingLeaseLiabilityNoncurrent  
Future minimum lease payments    
2019   $ 37
2020   33
2021   36
2022   34
2023   32
Thereafter   224
Total   $ 396