REVENUE (Tables)

12 Months Ended

Dec. 31, 2021

Revenue from Contract with Customer [Abstract]

Schedule of reconciliation of revenue from customers to total net sales

The following table reconciles revenue from customers to total net sales for the years ended December 31:

millions	2021		2020		2019
Revenue from customers	$	25,959	$	17,130	$	19,192
All other revenues (a)	(3)		679		1,719
Net sales	$	25,956	$	17,809	$	20,911

(a)Included net marketing derivatives, oil collars and calls and chemical exchange contracts.

Schedule of revenue from customers by segment, product, and geographical area

The table below presents Occidental's revenue from customers by segment, product and geographical area. The oil and gas segment typically sells its oil, NGL and gas at the lease or concession area. Chemical segment revenues are shown by geographic area based on the location of the sale. Excluding net marketing revenue, midstream and marketing segment revenues are shown by the location of sale.

millions	United States		International		Eliminations		Total
Year ended December 31, 2021
Oil and gas
Oil	$	12,072	$	2,844	$	—	$	14,916
NGL	2,203		325		—		2,528
Gas	1,524		291		—		1,815
Other	24		2		—		26
Segment total	$	15,823	$	3,462	$	—	$	19,285
Chemical	$	4,995	$	248	$	—	$	5,243
Midstream and marketing	$	1,969	$	556	$	—	$	2,525
Eliminations	$	—	$	—	$	(1,094)	$	(1,094)
Consolidated	$	22,787	$	4,266	$	(1,094)	$	25,959
Year ended December 31, 2020
Oil and gas
Oil	$	7,485	$	2,403	$	—	$	9,888
NGL	838		217		—		1,055
Gas	660		326		—		986
Other	65		1		—		66
Segment total	$	9,048	$	2,947	$	—	$	11,995
Chemical	$	3,524	$	202	$	—	$	3,726
Midstream and marketing	$	1,595	$	572	$	—	$	2,167
Eliminations	$	—	$	—	$	(758)	$	(758)
Consolidated	$	14,167	$	3,721	$	(758)	$	17,130
Year ended December 31, 2019
Oil and gas
Oil	$	8,411	$	3,939	$	—	$	12,350
NGL	658		283		—		941
Gas	424		339		—		763
Other	(1)		(5)		—		(6)
Segment total	$	9,492	$	4,556	$	—	$	14,048
Chemical	$	3,858	$	222	$	—	$	4,080
Midstream and marketing (a)	$	1,977	$	351	$	—	$	2,328
Eliminations	$	—	$	—	$	(1,264)	$	(1,264)
Consolidated	$	15,327	$	5,129	$	(1,264)	$	19,192

(a)The midstream and marketing segment included revenues from customers from WES from the date of the Acquisition to December 31, 2019. See Note 1 - Summary of Significant Accounting Policies for more information.