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Business Segments and Geographic Areas - Business Segments (Detail) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2017 | Sep. 30, 2017 | Jun. 30, 2017 | Mar. 31, 2017 | Dec. 31, 2016 | Sep. 30, 2016 | Jun. 30, 2016 | Mar. 31, 2016 | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenue | $ 1,969 | $ 1,835 | $ 1,759 | $ 1,741 | $ 1,692 | $ 1,646 | $ 1,724 | $ 2,189 | $ 7,304 | $ 7,251 | $ 14,757
Operating profit (loss) |  |  |  |  |  |  |  |  | (277) | (2,411) | (390)
Capital expenditures |  |  |  |  |  |  |  |  | 192 | 284 | 453
Depreciation and amortization |  |  |  |  |  |  |  |  | 698 | 703 | 747
Goodwill | 6,227 |  |  |  | 6,067 |  |  |  | 6,227 | 6,067 | 6,980
Total assets | 20,206 |  |  |  | 21,140 |  |  |  | 20,206 | 21,140 | 25,970
Wellbore Technologies [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Goodwill | 2,956 |  |  |  | 2,874 |  |  |  | 2,956 | 2,874 | 2,874
Completion & Production Solutions [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Goodwill | 2,122 |  |  |  | 2,058 |  |  |  | 2,122 | 2,058 | 1,997
Rig Technologies [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Goodwill | 1,149 |  |  |  | 1,135 |  |  |  | 1,149 | 1,135 | 2,109
Operating Segments [Member] | Wellbore Technologies [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 2,577 | 2,199 | 3,718
Operating profit (loss) |  |  |  |  |  |  |  |  | (102) | (770) | (1,573)
Capital expenditures |  |  |  |  |  |  |  |  | 99 | 124 | 180
Depreciation and amortization |  |  |  |  |  |  |  |  | 379 | 384 | 403
Goodwill | 2,956 |  |  |  | 2,874 |  |  |  | 2,956 | 2,874 | 2,874
Total assets | 7,848 |  |  |  | 7,911 |  |  |  | 7,848 | 7,911 | 8,766
Operating Segments [Member] | Completion & Production Solutions [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 2,672 | 2,241 | 3,365
Operating profit (loss) |  |  |  |  |  |  |  |  | 98 | (266) | 187
Capital expenditures |  |  |  |  |  |  |  |  | 69 | 61 | 87
Depreciation and amortization |  |  |  |  |  |  |  |  | 215 | 209 | 223
Goodwill | 2,122 |  |  |  | 2,058 |  |  |  | 2,122 | 2,058 | 1,997
Total assets | 5,782 |  |  |  | 5,765 |  |  |  | 5,782 | 5,765 | 5,916
Operating Segments [Member] | Rig Technologies [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 2,252 | 3,110 | 8,279
Operating profit (loss) |  |  |  |  |  |  |  |  | (14) | (1,033) | 1,501
Capital expenditures |  |  |  |  |  |  |  |  | 16 | 24 | 91
Depreciation and amortization |  |  |  |  |  |  |  |  | 88 | 94 | 107
Goodwill | 1,149 |  |  |  | 1,135 |  |  |  | 1,149 | 1,135 | 2,109
Total assets | 4,625 |  |  |  | 5,327 |  |  |  | 4,625 | 5,327 | 9,227
Eliminations and Corporate Costs [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | (197) | (299) | (605)
Operating profit (loss) |  |  |  |  |  |  |  |  | (259) | (342) | (505)
Capital expenditures |  |  |  |  |  |  |  |  | 8 | 75 | 95
Depreciation and amortization |  |  |  |  |  |  |  |  | 16 | 16 | 14
Total assets | $ 1,951 |  |  |  | $ 2,137 |  |  |  | $ 1,951 | $ 2,137 | $ 2,061

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