Annual report pursuant to Section 13 and 15(d)

LEASES - ADDITIONAL OPERATION LEASES (Details)

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LEASES - ADDITIONAL OPERATION LEASES (Details)
$ in Millions
12 Months Ended
Dec. 31, 2019
USD ($)
Components of lease expense, cash flows, and supplemental noncash information  
Lease not yet commenced $ 43
Maximum  
Components of lease expense, cash flows, and supplemental noncash information  
Lease not yet commenced term 20 years