Business Segment and Geographic Information (Details) - USD ($) $ in Millions		3 Months Ended		12 Months Ended
		Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2022		Dec. 31, 2021		Dec. 31, 2020
Revenue:
Revenue				$ 20,297		$ 15,295		$ 14,445
Operating income:
Total operating income (loss)				2,707		1,800		(2,436)
Impairments and other charges		$ (344)	$ (22)	(366)	[1]	(12)	[1]	(3,799)	[1]
Interest expense, net of interest income				(375)		(469)		(505)
Other, net				(180)		(79)		(111)
Income (loss) before income taxes				2,110		1,252		(3,220)
Capital expenditures:
Total capital expenditures				1,011		799		728
Depreciation, depletion, and amortization:
Total depreciation, depletion and amortization				940		904		1,058
Total assets:
Total assets				23,255		22,321
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment, Net				4,348		4,326
Gain (Loss) on Extinguishment of Debt				(42)		0		(168)
Total operations
Operating income:
Total operating income (loss)				3,329		2,039		1,564
Corporate and shared assets
Total assets:
Total assets	[2]			6,745		7,529
Corporate and other
Operating income:
Total operating income (loss)	[3]			(256)		(227)		(201)
Capital expenditures:
Total capital expenditures				2		5		4
Depreciation, depletion, and amortization:
Total depreciation, depletion and amortization				14		14		13
Completion and Production
Revenue:
Revenue				11,582		8,410		7,839
Operating income:
Total operating income (loss)				2,037		1,238		995
Impairments and other charges		(131)		(136)		(42)		(2,400)
Capital expenditures:
Total capital expenditures				589		402		314
Depreciation, depletion, and amortization:
Total depreciation, depletion and amortization				520		502		615
Total assets:
Total assets	[4]			9,311		8,186
Drilling and Evaluation
Revenue:
Revenue				8,715		6,885		6,606
Operating income:
Total operating income (loss)				1,292		801		569
Impairments and other charges		$ (178)		(195)		(9)		(1,400)
Capital expenditures:
Total capital expenditures				420		392		410
Depreciation, depletion, and amortization:
Total depreciation, depletion and amortization				406		388		430
Total assets:
Total assets	[4]			7,199		6,606
Corporate and Other [Member]
Operating income:
Impairments and other charges				(35)		39		(62)
North America [Member]
Revenue:
Revenue				9,597		6,371		5,731
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment, Net				2,424		2,238
Latin America [Member]
Revenue:
Revenue				3,197		2,362		1,668
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment, Net				520		510
Europe/Africa/CIS [Member]
Revenue:
Revenue				2,691		2,719		2,813
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment, Net				435		584
Middle East/Asia [Member]
Revenue:
Revenue				4,812		3,843		$ 4,233
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment, Net				$ 969		$ 994

[1] Impairments and other charges are as follows: -For the year ended December 31, 2022, amount includes approximately $136 million attributable to Completion and Production, $195 million attributable to Drilling and Evaluation, and a $35 million attributable to Corporate and other. -For the year ended December 31, 2021, amount includes approximately $42 million attributable to Completion and Production, $9 million attributable to Drilling and Evaluation, and a $39 million net gain attributable to Corporate and other. -For the year ended December 31, 2020, amount includes approximately $2.4 billion attributable to Completion and Production, $1.4 billion attributable to Drilling and Evaluation, and $62 million attributable to Corporate and other.

[2] Includes primarily cash and equivalents and deferred tax assets.

[3] Includes certain expenses not attributable to a business segment, such as costs related to support functions, corporate executives, and operating lease assets, and also includes amortization expense associated with intangible assets recorded as a result of acquisitions.

[4] Assets associated with specific segments primarily include receivables, inventories, property, plant, and equipment, operating lease right-of-use assets, equity in and advances to related companies, and goodwill.