THE ACQUISITION - MERGER-RELATED COSTS (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Business Acquisition [Line Items]
Total	$ 1,647	$ 0	$ 0
Anadarko Petroleum Corporation
Business Acquisition [Line Items]
Employee severance and related employee cost	1,033
Licensing fees for critical seismic data	401
Bank, legal, consulting and other	213
Total	$ 1,647