Long-Lived Asset Impairments Narrative (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Jun. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Impaired Long-Lived Assets Held and Used [Line Items]
Long-lived asset impairment charges	$ 436
Product line asset impairments	388
Intangible asset impairments	48
Long-Lived Asset Impairments and Other Charges	436		$ 436	$ 124
OTTI impairment loss on equity method investments		$ 20
Pressure Pumping [Member]
Impaired Long-Lived Assets Held and Used [Line Items]
Long-Lived Asset Impairments and Other Charges		$ 124
Latin America [Member]
Impaired Long-Lived Assets Held and Used [Line Items]
Product line asset impairments	16
Europe/ SSA/ Russia [Member]
Impaired Long-Lived Assets Held and Used [Line Items]
Product line asset impairments	12
Intangible asset impairments	13
MENA/ Asia Pacific [Member]
Impaired Long-Lived Assets Held and Used [Line Items]
Product line asset impairments	109
North America [Member]
Impaired Long-Lived Assets Held and Used [Line Items]
Product line asset impairments	235
Intangible asset impairments			$ 35
Drilling Rigs [Member]
Impaired Long-Lived Assets Held and Used [Line Items]
Product line asset impairments	$ 16