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Business Segments and Geographic Areas - Business Segments (Detail) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2018 | Sep. 30, 2018 | Jun. 30, 2018 | Mar. 31, 2018 | Dec. 31, 2017 | Sep. 30, 2017 | Jun. 30, 2017 | Mar. 31, 2017 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenue | $ 2,398 | $ 2,154 | $ 2,106 | $ 1,795 | $ 1,969 | $ 1,835 | $ 1,759 | $ 1,741 | $ 8,453 | $ 7,304 | $ 7,251
Operating profit (loss) |  |  |  |  |  |  |  |  | 211 | (277) | (2,411)
Capital expenditures |  |  |  |  |  |  |  |  | 244 | 192 | 284
Depreciation and amortization |  |  |  |  |  |  |  |  | 690 | 698 | 703
Goodwill | 6,264 |  |  |  | 6,227 |  |  |  | 6,264 | 6,227 | 6,067
Total assets | 19,796 |  |  |  | 20,206 |  |  |  | 19,796 | 20,206 | 21,140
Wellbore Technologies [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Goodwill | 3,011 |  |  |  | 2,956 |  |  |  | 3,011 | 2,956 | 2,874
Completion & Production Solutions [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Goodwill | 2,041 |  |  |  | 2,122 |  |  |  | 2,041 | 2,122 | 2,058
Rig Technologies [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Goodwill | 1,212 |  |  |  | 1,149 |  |  |  | 1,212 | 1,149 | 1,135
Eliminations and Corporate Costs [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | (288) | (197) | (299)
Operating profit (loss) |  |  |  |  |  |  |  |  | (299) | (259) | (342)
Capital expenditures |  |  |  |  |  |  |  |  | 5 | 8 | 75
Depreciation and amortization |  |  |  |  |  |  |  |  | 14 | 16 | 16
Total assets | 1,728 |  |  |  | 1,951 |  |  |  | 1,728 | 1,951 | 2,137
Operating Segments [Member] | Wellbore Technologies [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 3,235 | 2,577 | 2,199
Operating profit (loss) |  |  |  |  |  |  |  |  | 131 | (102) | (770)
Capital expenditures |  |  |  |  |  |  |  |  | 135 | 99 | 124
Depreciation and amortization |  |  |  |  |  |  |  |  | 374 | 379 | 384
Goodwill | 3,011 |  |  |  | 2,956 |  |  |  | 3,011 | 2,956 | 2,874
Total assets | 7,929 |  |  |  | 7,848 |  |  |  | 7,929 | 7,848 | 7,911
Operating Segments [Member] | Completion & Production Solutions [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 2,931 | 2,672 | 2,241
Operating profit (loss) |  |  |  |  |  |  |  |  | 166 | 98 | (266)
Capital expenditures |  |  |  |  |  |  |  |  | 87 | 69 | 61
Depreciation and amortization |  |  |  |  |  |  |  |  | 212 | 215 | 209
Goodwill | 2,041 |  |  |  | 2,122 |  |  |  | 2,041 | 2,122 | 2,058
Total assets | 6,233 |  |  |  | 5,782 |  |  |  | 6,233 | 5,782 | 5,765
Operating Segments [Member] | Rig Technologies [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 2,575 | 2,252 | 3,110
Operating profit (loss) |  |  |  |  |  |  |  |  | 213 | (14) | (1,033)
Capital expenditures |  |  |  |  |  |  |  |  | 17 | 16 | 24
Depreciation and amortization |  |  |  |  |  |  |  |  | 90 | 88 | 94
Goodwill | 1,212 |  |  |  | 1,149 |  |  |  | 1,212 | 1,149 | 1,135
Total assets | $ 3,906 |  |  |  | $ 4,625 |  |  |  | $ 3,906 | $ 4,625 | $ 5,327

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