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Annual report pursuant to Section 13 and 15(d)

REVENUES - Deferred Revenue (Details)

v3.20.4
REVENUES - Deferred Revenue (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Deferred Revenue Arrangement [Line Items] Ìý Ìý Ìý
Realization of Deferred Revenue $ 35 $ 0 $ 0
Other Current Liabilities [Member] Ìý Ìý Ìý
Deferred Revenue Arrangement [Line Items] Ìý Ìý Ìý
Deferred Revenue (Current) 7 22 21
Net Increase (Decrease) (15) 1 Ìý
Other Noncurrent Liabilities [Member] Ìý Ìý Ìý
Deferred Revenue Arrangement [Line Items] Ìý Ìý Ìý
Net Increase (Decrease) (26) (13) Ìý
Deferred Revenue (Long-Term) $ 0 $ 26 $ 39