ACQUISITIONS, DIVESTITURES AND OTHER TRANSACTIONS - SUMMARY OF REVENUES AND COSTS FROM DISCONTINUED OPERATIONS (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Costs and other deductions
Discontinued operations, net of tax		$ (468)	$ (1,298)	$ (15)
Ghana, Mozambique and South Africa Assets | Disposed of by sale
Revenues and other income
Net sales	$ 221	458	419
Costs and other deductions
Oil and gas lease operating expense	45	71	117
Fair value adjustment on assets held for sale	85	409	2,263
Other	45	24	48
Total costs and other deductions	175	504	2,428
Income (loss) before income taxes	46	(46)	(2,009)
Income tax benefit (expense)	(61)	15	711
Discontinued operations, net of tax	$ (15)	$ (31)	$ (1,298)