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Segment Information - Summary of Significant Segment Expenses (Detail) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Segment Reporting Information [Line Items]    
Depreciation and amortization [1] $ 685 $ 640
Digital Integration | Operating Segments    
Segment Reporting Information [Line Items]    
Compensation 183 189
Depreciation and amortization 33 56
Allocations 88 77
Other 202 140
Segment Expenses 506 462
Reservoir Performance | Operating Segments    
Segment Reporting Information [Line Items]    
Compensation 387 407
Cost of products, materials, and supplies 270 309
Depreciation and amortization 113 104
Allocations 162 165
Other 405 433
Segment Expenses 1,337 1,418
Well Construction | Operating Segments    
Segment Reporting Information [Line Items]    
Compensation 582 604
Cost of products, materials, and supplies 768 802
Depreciation and amortization 161 164
Allocations 229 250
Other 633 568
Segment Expenses 2,373 2,388
Production Systems | Operating Segments    
Segment Reporting Information [Line Items]    
Compensation 466 240
Cost of products, materials, and supplies 1,990 1,731
Depreciation and amortization 152 90
Allocations 137 137
Other 266 172
Segment Expenses $ 3,011 $ 2,370
[1] Includes depreciation of fixed assets and amortization of intangible assets, exploration data costs, and Asset Performance Solutions ("APS") investments.