XML 50 R37.htm IDEA: XBRL DOCUMENT v3.21.2
FINANCIAL INSTRUMENTS (Narrative) (Details) - USD ($)
$ in Millions
6 Months Ended
Jun. 30, 2021
Dec. 31, 2020
Derivative [Line Items]    
Accumulated other comprehensive loss $ 10 $ 21
Net amount of deferred gains and losses on cash flow hedges that is expected to be reclassified within the next 12 months 1  
Cash Flow Hedging    
Derivative [Line Items]    
Accumulated other comprehensive loss $ 1 $ 1