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Charges and Credits - Summary of Charges and Credits (Detail) - USD ($)
3 Months Ended
6 Months Ended
Jun. 30, 2020
Mar. 31, 2020
Jun. 30, 2020
Jun. 30, 2019
Charges And Credits [Line Items]
Charges and credits, Net
$ 0
Impairment and Other
Charges And Credits [Line Items]
Charges and credits, Pretax
$ 12,247,000,000
Charges and credits, Tax
(1,017,000,000)
Charges and credits, Net
$ 11,230,000,000
Goodwill | Impairment and Other
Charges And Credits [Line Items]
Charges and credits, Pretax
$ 3,070,000,000
Charges and credits, Net
3,070,000,000
Intangible assets impairment | Impairment and Other
Charges And Credits [Line Items]
Charges and credits, Pretax
3,321,000,000
Charges and credits, Tax
(815,000,000)
Charges and credits, Net
2,506,000,000
Asset Performance Solutions Investments | Impairment and Other
Charges And Credits [Line Items]
Charges and credits, Pretax
$ 730,000,000
1,264,000,000
Charges and credits, Tax
(15,000,000)
4,000,000
Charges and credits, Net
715,000,000
1,268,000,000
North America pressure pumping asset impairments | Impairment and Other
Charges And Credits [Line Items]
Charges and credits, Pretax
587,000,000
Charges and credits, Tax
(133,000,000)
Charges and credits, Net
454,000,000
Workforce reductions | Impairment and Other
Charges And Credits [Line Items]
Charges and credits, Pretax
1,021,000,000
202,000,000
Charges and credits, Tax
(71,000,000)
(7,000,000)
Charges and credits, Net
950,000,000
195,000,000
Other | Impairment and Other
Charges And Credits [Line Items]
Charges and credits, Pretax
61,000,000
79,000,000
Charges and credits, Tax
(4,000,000)
(9,000,000)
Charges and credits, Net
57,000,000
70,000,000
Valuation allowance | Impairment and Other
Charges And Credits [Line Items]
Charges and credits, Tax
164,000,000
Charges and credits, Net
$ 164,000,000
Fixed Asset Impairments | Impairment and Other
Charges And Credits [Line Items]
Charges and credits, Pretax
666,000,000
Charges and credits, Tax
(52,000,000)
Charges and credits, Net
614,000,000
Inventory Write Down | Impairment and Other
Charges And Credits [Line Items]
Charges and credits, Pretax
603,000,000
Charges and credits, Tax
(49,000,000)
Charges and credits, Net
554,000,000
Right-of-use Asset Impairments | Impairment and Other
Charges And Credits [Line Items]
Charges and credits, Pretax
311,000,000
Charges and credits, Tax
(67,000,000)
Charges and credits, Net
244,000,000
Costs Associated With Exiting Certain Activities | Impairment and Other
Charges And Credits [Line Items]
Charges and credits, Pretax
205,000,000
Charges and credits, Tax
25,000,000
Charges and credits, Net
230,000,000
Multiclient Seismic Data Impairment | Impairment and Other
Charges And Credits [Line Items]
Charges and credits, Pretax
156,000,000
Charges and credits, Tax
(2,000,000)
Charges and credits, Net
154,000,000
Repurchase of bonds | Impairment and Other
Charges And Credits [Line Items]
Charges and credits, Pretax
40,000,000
Charges and credits, Tax
(2,000,000)
Charges and credits, Net
38,000,000
Postretirement Benefits Curtailment Gain | Impairment and Other
Charges And Credits [Line Items]
Charges and credits, Pretax
(69,000,000)
Charges and credits, Tax
16,000,000
Charges and credits, Net
$ (53,000,000)
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