Disclosures about Segments and Related Information (Schedule of Segments and Related Information) (Details) - USD ($) $ in Millions |
12 Months Ended |
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
| Segment reporting information [Line Items] |
|
|
|
| Revenues |
$ 332,238
|
$ 349,585
|
$ 344,582
|
| Crude oil and product purchases |
184,248
|
199,454
|
193,029
|
| Depreciation and depletion (includes impairments) |
25,993
|
23,442
|
20,641
|
| Interest expense |
603
|
996
|
849
|
| Other taxes and duties |
25,167
|
26,288
|
29,011
|
| Total costs and other deductions |
290,970
|
300,712
|
291,799
|
| Segment income (loss) before income taxes |
41,268
|
48,873
|
52,783
|
| Income tax expense (benefit) |
11,504
|
13,810
|
15,429
|
| Net income (loss) including noncontrolling interests |
29,764
|
35,063
|
37,354
|
| Net income (loss) attributable to noncontrolling interests |
920
|
1,383
|
1,344
|
| Net income (loss) attributable to ExxonMobil |
28,844
|
33,680
|
36,010
|
| Additions to property, plant and equipment |
31,476
|
109,332
|
|
| Investments in equity companies |
32,653
|
34,010
|
|
| Total Assets |
448,980
|
453,475
|
|
| Operating Segments |
|
|
|
| Segment reporting information [Line Items] |
|
|
|
| Revenues |
452,209
|
478,091
|
469,369
|
| Crude oil and product purchases |
303,196
|
326,773
|
317,100
|
| Operating expenses, excl. depreciation and depletion |
53,097
|
50,922
|
48,204
|
| Depreciation and depletion (includes impairments) |
24,559
|
22,390
|
19,788
|
| Interest expense |
221
|
291
|
173
|
| Other taxes and duties |
25,167
|
26,542
|
29,011
|
| Total costs and other deductions |
406,240
|
426,918
|
414,276
|
| Segment income (loss) before income taxes |
45,969
|
51,173
|
55,093
|
| Income tax expense (benefit) |
12,366
|
14,690
|
15,891
|
| Net income (loss) including noncontrolling interests |
33,603
|
36,483
|
39,202
|
| Net income (loss) attributable to noncontrolling interests |
1,169
|
1,431
|
1,401
|
| Net income (loss) attributable to ExxonMobil |
32,434
|
35,052
|
37,801
|
| Additions to property, plant and equipment |
29,233
|
107,151
|
|
| Investments in equity companies |
32,765
|
34,118
|
|
| Total Assets |
413,825
|
411,124
|
|
| Segment Reporting, Reconciling Item, Corporate Nonsegment |
|
|
|
| Segment reporting information [Line Items] |
|
|
|
| Revenues |
1,034
|
1,853
|
1,664
|
| Net income (loss) attributable to ExxonMobil |
(3,590)
|
(1,372)
|
(1,791)
|
| Additions to property, plant and equipment |
2,243
|
2,181
|
|
| Investments in equity companies |
(112)
|
(108)
|
|
| Total Assets |
35,155
|
42,351
|
|
| Intersegment Eliminations |
|
|
|
| Segment reporting information [Line Items] |
|
|
|
| Revenues |
(121,005)
|
(130,359)
|
(126,451)
|
| Sales and other operating revenue |
|
|
|
| Segment reporting information [Line Items] |
|
|
|
| Revenues |
323,905
|
339,247
|
334,697
|
| Sales and other operating revenue | Operating Segments |
|
|
|
| Segment reporting information [Line Items] |
|
|
|
| Revenues |
323,820
|
339,136
|
334,629
|
| Income from equity affiliates |
|
|
|
| Segment reporting information [Line Items] |
|
|
|
| Revenues |
5,064
|
6,194
|
6,385
|
| Income from equity affiliates | Operating Segments |
|
|
|
| Segment reporting information [Line Items] |
|
|
|
| Revenues |
5,330
|
6,399
|
6,746
|
| Other income |
|
|
|
| Segment reporting information [Line Items] |
|
|
|
| Revenues |
3,269
|
4,144
|
3,500
|
| Other income | Operating Segments |
|
|
|
| Segment reporting information [Line Items] |
|
|
|
| Revenues |
2,054
|
2,197
|
1,543
|
| Other Revenue, Interest | Segment Reporting, Reconciling Item, Corporate Nonsegment |
|
|
|
| Segment reporting information [Line Items] |
|
|
|
| Revenues |
1,212
|
1,600
|
1,628
|
| U.S. |
|
|
|
| Segment reporting information [Line Items] |
|
|
|
| Other taxes and duties |
3,521
|
3,849
|
3,871
|
| Income tax expense (benefit) |
637
|
2,382
|
2,837
|
| U.S. | Sales and other operating revenue |
|
|
|
| Segment reporting information [Line Items] |
|
|
|
| Revenues |
137,639
|
138,657
|
127,374
|
| Non-U.S. |
|
|
|
| Segment reporting information [Line Items] |
|
|
|
| Other taxes and duties |
21,646
|
22,439
|
25,140
|
| Income tax expense (benefit) |
10,867
|
11,428
|
12,592
|
| Non-U.S. | Sales and other operating revenue |
|
|
|
| Segment reporting information [Line Items] |
|
|
|
| Revenues |
186,266
|
200,590
|
207,323
|
| Upstream | U.S. |
|
|
|
| Segment reporting information [Line Items] |
|
|
|
| Revenues |
51,489
|
48,416
|
31,165
|
| Crude oil and product purchases |
19,765
|
18,325
|
9,945
|
| Operating expenses, excl. depreciation and depletion |
11,344
|
9,822
|
6,696
|
| Depreciation and depletion (includes impairments) |
13,906
|
11,510
|
8,863
|
| Interest expense |
128
|
185
|
82
|
| Other taxes and duties |
179
|
334
|
361
|
| Total costs and other deductions |
45,322
|
40,176
|
25,947
|
| Segment income (loss) before income taxes |
6,167
|
8,240
|
5,218
|
| Income tax expense (benefit) |
1,104
|
1,814
|
1,016
|
| Net income (loss) including noncontrolling interests |
5,063
|
6,426
|
4,202
|
| Net income (loss) attributable to noncontrolling interests |
0
|
0
|
0
|
| Net income (loss) attributable to ExxonMobil |
5,063
|
6,426
|
4,202
|
| Additions to property, plant and equipment |
15,872
|
94,649
|
|
| Investments in equity companies |
5,491
|
4,884
|
|
| Total Assets |
153,042
|
154,914
|
|
| Upstream | U.S. | Intersegment Eliminations |
|
|
|
| Segment reporting information [Line Items] |
|
|
|
| Revenues |
(25,637)
|
(24,633)
|
(20,971)
|
| Upstream | U.S. | Sales and other operating revenue |
|
|
|
| Segment reporting information [Line Items] |
|
|
|
| Revenues |
25,396
|
22,929
|
9,500
|
| Upstream | U.S. | Income from equity affiliates |
|
|
|
| Segment reporting information [Line Items] |
|
|
|
| Revenues |
19
|
(36)
|
63
|
| Upstream | U.S. | Other income |
|
|
|
| Segment reporting information [Line Items] |
|
|
|
| Revenues |
437
|
890
|
631
|
| Upstream | Non-U.S. |
|
|
|
| Segment reporting information [Line Items] |
|
|
|
| Revenues |
55,662
|
62,330
|
61,072
|
| Crude oil and product purchases |
10,035
|
10,388
|
11,279
|
| Operating expenses, excl. depreciation and depletion |
10,515
|
10,695
|
10,960
|
| Depreciation and depletion (includes impairments) |
7,451
|
8,014
|
7,737
|
| Interest expense |
40
|
82
|
74
|
| Other taxes and duties |
2,097
|
2,750
|
2,684
|
| Total costs and other deductions |
30,138
|
31,929
|
32,734
|
| Segment income (loss) before income taxes |
25,524
|
30,401
|
28,338
|
| Income tax expense (benefit) |
8,753
|
10,622
|
10,593
|
| Net income (loss) including noncontrolling interests |
16,771
|
19,779
|
17,745
|
| Net income (loss) attributable to noncontrolling interests |
480
|
815
|
639
|
| Net income (loss) attributable to ExxonMobil |
16,291
|
18,964
|
17,106
|
| Additions to property, plant and equipment |
9,490
|
8,371
|
|
| Investments in equity companies |
19,429
|
21,396
|
|
| Total Assets |
134,529
|
134,609
|
|
| Upstream | Non-U.S. | Intersegment Eliminations |
|
|
|
| Segment reporting information [Line Items] |
|
|
|
| Revenues |
(36,769)
|
(41,809)
|
(38,982)
|
| Upstream | Non-U.S. | Sales and other operating revenue |
|
|
|
| Segment reporting information [Line Items] |
|
|
|
| Revenues |
13,993
|
14,202
|
16,074
|
| Upstream | Non-U.S. | Income from equity affiliates |
|
|
|
| Segment reporting information [Line Items] |
|
|
|
| Revenues |
4,340
|
5,649
|
5,550
|
| Upstream | Non-U.S. | Other income |
|
|
|
| Segment reporting information [Line Items] |
|
|
|
| Revenues |
560
|
670
|
466
|
| Energy Products | U.S. |
|
|
|
| Segment reporting information [Line Items] |
|
|
|
| Revenues |
118,497
|
125,386
|
127,672
|
| Crude oil and product purchases |
102,027
|
110,205
|
107,796
|
| Operating expenses, excl. depreciation and depletion |
8,387
|
8,034
|
7,851
|
| Depreciation and depletion (includes impairments) |
828
|
799
|
765
|
| Interest expense |
5
|
9
|
4
|
| Other taxes and duties |
3,240
|
3,421
|
3,421
|
| Total costs and other deductions |
114,487
|
122,468
|
119,837
|
| Segment income (loss) before income taxes |
4,010
|
2,918
|
7,835
|
| Income tax expense (benefit) |
792
|
631
|
1,543
|
| Net income (loss) including noncontrolling interests |
3,218
|
2,287
|
6,292
|
| Net income (loss) attributable to noncontrolling interests |
226
|
188
|
169
|
| Net income (loss) attributable to ExxonMobil |
2,992
|
2,099
|
6,123
|
| Additions to property, plant and equipment |
703
|
589
|
|
| Investments in equity companies |
460
|
444
|
|
| Total Assets |
32,652
|
32,143
|
|
| Energy Products | U.S. | Intersegment Eliminations |
|
|
|
| Segment reporting information [Line Items] |
|
|
|
| Revenues |
(19,172)
|
(23,626)
|
(23,481)
|
| Energy Products | U.S. | Sales and other operating revenue |
|
|
|
| Segment reporting information [Line Items] |
|
|
|
| Revenues |
99,073
|
101,325
|
103,868
|
| Energy Products | U.S. | Income from equity affiliates |
|
|
|
| Segment reporting information [Line Items] |
|
|
|
| Revenues |
139
|
140
|
140
|
| Energy Products | U.S. | Other income |
|
|
|
| Segment reporting information [Line Items] |
|
|
|
| Revenues |
113
|
295
|
183
|
| Energy Products | Non-U.S. |
|
|
|
| Segment reporting information [Line Items] |
|
|
|
| Revenues |
173,119
|
185,648
|
192,991
|
| Crude oil and product purchases |
138,024
|
153,811
|
152,487
|
| Operating expenses, excl. depreciation and depletion |
9,162
|
8,924
|
9,434
|
| Depreciation and depletion (includes impairments) |
749
|
734
|
797
|
| Interest expense |
37
|
10
|
7
|
| Other taxes and duties |
19,205
|
19,699
|
22,226
|
| Total costs and other deductions |
167,177
|
183,178
|
184,951
|
| Segment income (loss) before income taxes |
5,942
|
2,470
|
8,040
|
| Income tax expense (benefit) |
1,097
|
164
|
1,492
|
| Net income (loss) including noncontrolling interests |
4,845
|
2,306
|
6,548
|
| Net income (loss) attributable to noncontrolling interests |
414
|
372
|
529
|
| Net income (loss) attributable to ExxonMobil |
4,431
|
1,934
|
6,019
|
| Additions to property, plant and equipment |
1,251
|
1,450
|
|
| Investments in equity companies |
1,048
|
915
|
|
| Total Assets |
47,265
|
43,399
|
|
| Energy Products | Non-U.S. | Intersegment Eliminations |
|
|
|
| Segment reporting information [Line Items] |
|
|
|
| Revenues |
(26,694)
|
(26,034)
|
(28,258)
|
| Energy Products | Non-U.S. | Sales and other operating revenue |
|
|
|
| Segment reporting information [Line Items] |
|
|
|
| Revenues |
145,378
|
159,531
|
164,515
|
| Energy Products | Non-U.S. | Income from equity affiliates |
|
|
|
| Segment reporting information [Line Items] |
|
|
|
| Revenues |
198
|
(109)
|
131
|
| Energy Products | Non-U.S. | Other income |
|
|
|
| Segment reporting information [Line Items] |
|
|
|
| Revenues |
849
|
192
|
87
|
| Chemical Products | U.S. |
|
|
|
| Segment reporting information [Line Items] |
|
|
|
| Revenues |
14,509
|
16,058
|
16,074
|
| Crude oil and product purchases |
8,237
|
8,510
|
8,824
|
| Operating expenses, excl. depreciation and depletion |
4,620
|
4,781
|
4,560
|
| Depreciation and depletion (includes impairments) |
595
|
611
|
605
|
| Interest expense |
0
|
1
|
2
|
| Other taxes and duties |
79
|
68
|
61
|
| Total costs and other deductions |
13,531
|
13,971
|
14,052
|
| Segment income (loss) before income taxes |
978
|
2,087
|
2,022
|
| Income tax expense (benefit) |
75
|
460
|
396
|
| Net income (loss) including noncontrolling interests |
903
|
1,627
|
1,626
|
| Net income (loss) attributable to noncontrolling interests |
0
|
0
|
0
|
| Net income (loss) attributable to ExxonMobil |
903
|
1,627
|
1,626
|
| Additions to property, plant and equipment |
800
|
474
|
|
| Investments in equity companies |
2,946
|
3,016
|
|
| Total Assets |
17,365
|
17,445
|
|
| Chemical Products | U.S. | Intersegment Eliminations |
|
|
|
| Segment reporting information [Line Items] |
|
|
|
| Revenues |
(6,777)
|
(7,329)
|
(7,991)
|
| Chemical Products | U.S. | Sales and other operating revenue |
|
|
|
| Segment reporting information [Line Items] |
|
|
|
| Revenues |
7,594
|
8,558
|
7,951
|
| Chemical Products | U.S. | Income from equity affiliates |
|
|
|
| Segment reporting information [Line Items] |
|
|
|
| Revenues |
135
|
166
|
126
|
| Chemical Products | U.S. | Other income |
|
|
|
| Segment reporting information [Line Items] |
|
|
|
| Revenues |
3
|
5
|
6
|
| Chemical Products | Non-U.S. |
|
|
|
| Segment reporting information [Line Items] |
|
|
|
| Revenues |
18,473
|
18,853
|
18,730
|
| Crude oil and product purchases |
13,069
|
12,621
|
13,096
|
| Operating expenses, excl. depreciation and depletion |
4,693
|
4,419
|
4,643
|
| Depreciation and depletion (includes impairments) |
760
|
485
|
706
|
| Interest expense |
(2)
|
1
|
2
|
| Other taxes and duties |
174
|
78
|
78
|
| Total costs and other deductions |
18,694
|
17,604
|
18,525
|
| Segment income (loss) before income taxes |
(221)
|
1,249
|
205
|
| Income tax expense (benefit) |
(144)
|
262
|
158
|
| Net income (loss) including noncontrolling interests |
(77)
|
987
|
47
|
| Net income (loss) attributable to noncontrolling interests |
26
|
37
|
36
|
| Net income (loss) attributable to ExxonMobil |
(103)
|
950
|
11
|
| Additions to property, plant and equipment |
522
|
1,161
|
|
| Investments in equity companies |
2,616
|
2,649
|
|
| Total Assets |
17,991
|
17,692
|
|
| Chemical Products | Non-U.S. | Intersegment Eliminations |
|
|
|
| Segment reporting information [Line Items] |
|
|
|
| Revenues |
(3,324)
|
(3,893)
|
(3,643)
|
| Chemical Products | Non-U.S. | Sales and other operating revenue |
|
|
|
| Segment reporting information [Line Items] |
|
|
|
| Revenues |
14,615
|
14,338
|
14,314
|
| Chemical Products | Non-U.S. | Income from equity affiliates |
|
|
|
| Segment reporting information [Line Items] |
|
|
|
| Revenues |
544
|
615
|
761
|
| Chemical Products | Non-U.S. | Other income |
|
|
|
| Segment reporting information [Line Items] |
|
|
|
| Revenues |
(10)
|
7
|
12
|
| Specialty Products | U.S. |
|
|
|
| Segment reporting information [Line Items] |
|
|
|
| Revenues |
7,655
|
8,274
|
8,633
|
| Crude oil and product purchases |
3,931
|
4,160
|
4,718
|
| Operating expenses, excl. depreciation and depletion |
2,079
|
1,931
|
1,822
|
| Depreciation and depletion (includes impairments) |
107
|
104
|
93
|
| Interest expense |
0
|
0
|
0
|
| Other taxes and duties |
9
|
7
|
6
|
| Total costs and other deductions |
6,126
|
6,202
|
6,639
|
| Segment income (loss) before income taxes |
1,529
|
2,072
|
1,994
|
| Income tax expense (benefit) |
327
|
494
|
458
|
| Net income (loss) including noncontrolling interests |
1,202
|
1,578
|
1,536
|
| Net income (loss) attributable to noncontrolling interests |
2
|
2
|
0
|
| Net income (loss) attributable to ExxonMobil |
1,200
|
1,576
|
1,536
|
| Additions to property, plant and equipment |
368
|
230
|
|
| Investments in equity companies |
0
|
0
|
|
| Total Assets |
2,961
|
2,882
|
|
| Specialty Products | U.S. | Intersegment Eliminations |
|
|
|
| Segment reporting information [Line Items] |
|
|
|
| Revenues |
(2,133)
|
(2,462)
|
(2,570)
|
| Specialty Products | U.S. | Sales and other operating revenue |
|
|
|
| Segment reporting information [Line Items] |
|
|
|
| Revenues |
5,502
|
5,790
|
6,044
|
| Specialty Products | U.S. | Income from equity affiliates |
|
|
|
| Segment reporting information [Line Items] |
|
|
|
| Revenues |
7
|
0
|
0
|
| Specialty Products | U.S. | Other income |
|
|
|
| Segment reporting information [Line Items] |
|
|
|
| Revenues |
13
|
22
|
19
|
| Specialty Products | Non-U.S. |
|
|
|
| Segment reporting information [Line Items] |
|
|
|
| Revenues |
12,805
|
13,126
|
13,032
|
| Crude oil and product purchases |
8,108
|
8,753
|
8,955
|
| Operating expenses, excl. depreciation and depletion |
2,297
|
2,316
|
2,238
|
| Depreciation and depletion (includes impairments) |
163
|
133
|
222
|
| Interest expense |
13
|
3
|
2
|
| Other taxes and duties |
184
|
185
|
174
|
| Total costs and other deductions |
10,765
|
11,390
|
11,591
|
| Segment income (loss) before income taxes |
2,040
|
1,736
|
1,441
|
| Income tax expense (benefit) |
362
|
243
|
235
|
| Net income (loss) including noncontrolling interests |
1,678
|
1,493
|
1,206
|
| Net income (loss) attributable to noncontrolling interests |
21
|
17
|
28
|
| Net income (loss) attributable to ExxonMobil |
1,657
|
1,476
|
1,178
|
| Additions to property, plant and equipment |
227
|
227
|
|
| Investments in equity companies |
775
|
814
|
|
| Total Assets |
8,020
|
8,040
|
|
| Specialty Products | Non-U.S. | Intersegment Eliminations |
|
|
|
| Segment reporting information [Line Items] |
|
|
|
| Revenues |
(499)
|
(573)
|
(555)
|
| Specialty Products | Non-U.S. | Sales and other operating revenue |
|
|
|
| Segment reporting information [Line Items] |
|
|
|
| Revenues |
12,269
|
12,463
|
12,363
|
| Specialty Products | Non-U.S. | Income from equity affiliates |
|
|
|
| Segment reporting information [Line Items] |
|
|
|
| Revenues |
(52)
|
(26)
|
(25)
|
| Specialty Products | Non-U.S. | Other income |
|
|
|
| Segment reporting information [Line Items] |
|
|
|
| Revenues |
$ 89
|
$ 116
|
$ 139
|