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Business Segments and Geographic Areas - Business Segments (Detail) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Segment Reporting Information [Line Items]      
Revenue $ 5,524 $ 6,090 $ 8,479
Operating profit (loss) (134) (2,425) (6,279)
Capital expenditures 201 226 233
Depreciation and amortization 306 352 533
Goodwill 1,527 1,493 2,807
Total assets 9,550 9,929 13,149
Wellbore Technologies [Member]      
Segment Reporting Information [Line Items]      
Goodwill 342 308 843
Completion & Production Solutions [Member]      
Segment Reporting Information [Line Items]      
Goodwill 473 473 1,054
Rig Technologies [Member]      
Segment Reporting Information [Line Items]      
Goodwill 712 712 910
Operating Segments [Member] | Wellbore Technologies [Member]      
Segment Reporting Information [Line Items]      
Revenue 1,959 1,867 3,214
Operating profit (loss) 74 (858) (3,551)
Capital expenditures 77 87 123
Depreciation and amortization 158 187 284
Goodwill 342 308 843
Total assets 2,670 2,665 4,078
Operating Segments [Member] | Completion & Production Solutions [Member]      
Segment Reporting Information [Line Items]      
Revenue 1,963 2,433 2,771
Operating profit (loss) (65) (977) (1,934)
Capital expenditures 46 48 64
Depreciation and amortization 62 75 150
Goodwill 473 473 1,054
Total assets 2,465 2,472 3,826
Operating Segments [Member] | Rig Technologies [Member]      
Segment Reporting Information [Line Items]      
Revenue 1,739 1,919 2,682
Operating profit (loss) 43 (362) (524)
Capital expenditures 74 80 31
Depreciation and amortization 71 77 87
Goodwill 712 712 910
Total assets 2,621 2,923 3,758
Eliminations and Corporate [Member]      
Segment Reporting Information [Line Items]      
Revenue (137) (129) (188)
Operating profit (loss) (186) (228) (270)
Capital expenditures 4 11 15
Depreciation and amortization 15 13 12
Total assets $ 1,794 $ 1,869 $ 1,487