Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2021		Jun. 30, 2020	Jun. 30, 2021		Jun. 30, 2020
Revenue:
Revenue	$ 3,707		$ 3,196	$ 7,158		$ 8,233
Operating costs and expenses:
Impairments and other charges	0	[1]	2,147	0	[1]	3,220	[1]
General and administrative	51		43	99		97
Total operating costs and expenses	3,273		5,107	6,354		10,715
Operating income	434		(1,911)	804		(2,482)
Interest expense, net of interest income	(120)		(124)	(245)		(258)
Loss on early extinguishment of debt	0		0	0		(168)	[2]
Other, net	(19)		(48)	(41)		(71)
Income (loss) from continuing operations before income taxes	295		(2,083)	518		(2,979)
Income tax (provision) benefit	(65)		402	(117)		283
Net income (loss)	230		(1,681)	401		(2,696)
Net (income) loss attributable to noncontrolling interest	(3)		5	(4)		3
Net income (loss) attributable to company	$ 227		$ (1,676)	$ 397		$ (2,693)
Basic and diluted net income per share	$ 260,000		$ (1,910,000)	$ 450,000		$ (3,070,000.00)
Weighted Average Number of Shares Outstanding, Basic	890		877	889		877
Weighted Average Number of Shares Outstanding, Diluted	890		877	889		877
Interest income	$ 14		$ 7	$ 24		$ 17
Noncontrolling Interest in Consolidated Subsidiaries
Operating costs and expenses:
Net income (loss)	3		(5)
Services [Member]
Revenue:
Revenue	2,683		2,188	5,146		5,872
Operating costs and expenses:
Cost of services and sales	2,370		2,097	4,621		5,490
Product sales [Member]
Revenue:
Revenue	1,024		1,008	2,012		2,361
Operating costs and expenses:
Cost of services and sales	$ 852		$ 820	$ 1,634		$ 1,908

[1] For the three and six months ended June 30, 2020, amount includes approximately $1.4 billion and $2.1 billion attributable to Completion and Production, $770 million and $1.0 billion attributable to Drilling and Evaluation, and $25 million and $41 million attributable to Corporate and other, respectively.

[2] For the six months ended June 30, 2020, amount includes a $168 million loss on extinguishment of debt related to the early repurchase of senior notes.