FINANCIAL INSTRUMENTS (Notional Amounts) (Details) bbl in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2021 USD ($) MWh bbl	Dec. 31, 2020 USD ($) MWh bbl
Derivatives designated as hedging instruments: | Interest rates
Derivative [Line Items]
Derivative, Notional Amount	$ 3,000	$ 612
Derivatives designated as hedging instruments: | Foreign currency
Derivative [Line Items]
Derivative, Notional Amount	$ 5,300	$ 3,784
Derivatives designated as hedging instruments: | Hydrocarbon derivatives
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount, Volume | bbl	9.7	10.9
Derivatives not designated as hedging instruments: | Interest rates
Derivative [Line Items]
Derivative, Notional Amount	$ 36	$ 94
Derivatives not designated as hedging instruments: | Foreign currency
Derivative [Line Items]
Derivative, Notional Amount	$ 8,234	$ 9,187
Derivatives not designated as hedging instruments: | Hydrocarbon derivatives
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount, Volume | bbl	0.1	0.0
Derivatives not designated as hedging instruments: | Power derivatives
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount, Energy Measure | MWh	3.3	0