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GUARANTEES (Details)
$ in Millions
12 Months Ended
Dec. 31, 2019
USD ($)
Income Guarantee  
GUARANTEES  
Guarantee obligation period 12 months
Commitment period 3 years
Guarantee of Business Revenue | Minimum  
GUARANTEES  
Guarantee obligation period 1 year
Guarantee of Business Revenue | Maximum  
GUARANTEES  
Guarantee obligation period 3 years
Income and revenue collection guarantee  
GUARANTEES  
Maximum potential amount of future payments under guarantees $ 133
Income and revenue collection guarantee | Other current liabilities  
GUARANTEES  
Liability for guarantees 107
Guaranteed investees of third parties  
GUARANTEES  
Liability for guarantees 25
Guarantee obligations for consolidated subsidiaries $ 8