Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2021		Mar. 31, 2020
Revenue:
Revenue	$ 3,451		$ 5,037
Operating costs and expenses:
Impairments and other charges	0	[1]	1,073
General and administrative	48		54
Total operating costs and expenses	3,081		5,608
Operating income	370		(571)
Interest expense, net of interest income	(125)		(134)
Interest income	10		10
Loss on early extinguishment of debt	0		(168)	[2]
Other, net	(22)		(23)
Income (loss) from continuing operations before income taxes	223		(896)
Income tax (provision) benefit	(52)		(119)
Net income (loss)	171		(1,015)
Net (income) loss attributable to noncontrolling interest	(1)		(2)
Net income (loss) attributable to company	$ 170		$ (1,017)
Basic and diluted net income per share	$ 0.19		$ (1.16)
Weighted Average Number of Shares Outstanding, Basic	889		878
Weighted Average Number of Shares Outstanding, Diluted	889		878
Services [Member]
Revenue:
Revenue	$ 2,463		$ 3,684
Operating costs and expenses:
Cost of services and sales	2,251		3,393
Product sales [Member]
Revenue:
Revenue	988		1,353
Operating costs and expenses:
Cost of services and sales	$ 782		$ 1,088

[1] For the three months ended March 31, 2020, amount includes approximately $780 million attributable to Completion and Production, $277 million attributable to Drilling and Evaluation, and $16 million attributable to Corporate and other.

[2] For the three months ended March 31, 2020, amount includes a $168 million loss on extinguishment of debt related to the early repurchase of senior notes.