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REVENUE (Tables)
 12 Months Ended
Dec. 31, 2020
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:

millions20202019
Revenue from customers$17,130 $19,192 
All other revenues (a)
679 1,719 
Net sales$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
millionsUnited StatesMiddle EastLatin AmericaOther InternationalEliminationsTotal
Year ended December 31, 2020
Oil and gas
Oil$7,485 $1,949 $454 $— $— $9,888 
NGL838 217 — — — 1,055 
Gas660 313 13 — — 986 
Other65 1 — — — 66 
Segment total$9,048 $2,480 $467 $— $— $11,995 
Chemical$3,524 $— $137 $65 $— $3,726 
Midstream and marketing
Gas processing$350 $294 $— $— $— $644 
Marketing1,144 — — 278 — 1,422 
Power and other101 — — — — 101 
Segment total$1,595 $294 $— $278 $— $2,167 
Eliminations$— $— $— $— $(758)$(758)
Consolidated$14,167 $2,774 $604 $343 $(758)$17,130 
Year ended December 31, 2019
Oil and gas
Oil$8,411 $3,256 $683 $— $— $12,350 
NGL658 283 — — — 941 
Gas424 319 20 — — 763 
Other(1)(5)— — — (6)
Segment total$9,492 $3,853 $703 $— $— $14,048 
Chemical$3,858 $— $155 $67 $— $4,080 
Midstream and marketing (a)
Gas processing and CO2
$395 $351 $— $— $— $746 
Marketing436 — — — — 436 
WES - Gas processing1,110 — — — — 1,110 
Power and other36 — — — — 36 
Segment total$1,977 $351 $— $— $— $2,328 
Eliminations$— $— $— $— $(1,264)$(1,264)
Consolidated$15,327 $4,204 $858 $67 $(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.
Transaction price allocated to remaining performance obligations