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Business Segments - Business Segments (Detail) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Segment Reporting Information [Line Items]    
Total revenue $ 1,741 $ 2,189
Total operating profit (loss) $ (97) $ (189)
Percentage as of operating profit (loss) to revenue (5.60%) (8.60%)
Operating Segments [Member] | Rig Systems [Member]    
Segment Reporting Information [Line Items]    
Total revenue $ 393 $ 926
Total operating profit (loss) $ 9 $ 67
Percentage as of operating profit (loss) to revenue 2.30% 7.20%
Operating Segments [Member] | Rig Aftermarket [Member]    
Segment Reporting Information [Line Items]    
Total revenue $ 321 $ 391
Total operating profit (loss) $ 61 $ 69
Percentage as of operating profit (loss) to revenue 19.00% 17.60%
Operating Segments [Member] | Wellbore Technologies [Member]    
Segment Reporting Information [Line Items]    
Total revenue $ 555 $ 631
Total operating profit (loss) $ (57) $ (91)
Percentage as of operating profit (loss) to revenue (10.30%) (14.40%)
Operating Segments [Member] | Completion & Production Solutions [Member]    
Segment Reporting Information [Line Items]    
Total revenue $ 648 $ 558
Total operating profit (loss) $ 8 $ (38)
Percentage as of operating profit (loss) to revenue 1.20% (6.80%)
Eliminations and Corporate Costs [Member]    
Segment Reporting Information [Line Items]    
Total revenue $ (176) $ (317)
Total operating profit (loss) $ (118) $ (196)