Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Millions	3 Months Ended			9 Months Ended
	Sep. 30, 2020		Sep. 30, 2019	Sep. 30, 2020		Sep. 30, 2019
Revenue:
Revenue	$ 2,975,000,000		$ 5,550,000,000	$ 11,208,000,000		$ 17,217,000,000
Operating costs and expenses:
Impairments and other charges	133,000,000	[1]	0	3,353,000,000	[1]	308,000,000	[1]
General and administrative	41,000,000		53,000,000	138,000,000		168,000,000
Total operating costs and expenses	2,833,000,000		5,014,000,000	13,548,000,000		16,013,000,000
Operating income	142,000,000		536,000,000	(2,340,000,000)		1,204,000,000
Interest expense, net of interest income	(122,000,000)		(141,000,000)	(380,000,000)		(428,000,000)
Interest income	11,000,000		6,000,000	28,000,000		18,000,000
Loss on early extinguishment of debt	0		0	(168,000,000)	[2]	0
Other, net	(21,000,000)		(23,000,000)	(92,000,000)		(61,000,000)
Income (loss) from continuing operations before income taxes	(1,000,000)		372,000,000	(2,980,000,000)		715,000,000
Income tax (provision) benefit	(18,000,000)		(76,000,000)	265,000,000		(190,000,000)
Net income (loss)	(19,000,000)		296,000,000	(2,715,000,000)		525,000,000
Net (income) loss attributable to noncontrolling interest	2,000,000		(1,000,000)	5,000,000		(3,000,000)
Net income (loss) attributable to company	$ (17,000,000)		$ 295,000,000	$ (2,710,000,000)		$ 522,000,000
Basic and diluted net income per share	$ (0.02)		$ 0.34	$ (3.08)		$ 0.60
Weighted Average Number of Shares Outstanding, Basic	882		876	879		874
Weighted Average Number of Shares Outstanding, Diluted	882		876	879		875
Services [Member]
Revenue:
Revenue	$ 2,068,000,000		$ 4,207,000,000	$ 7,940,000,000		$ 13,118,000,000
Operating costs and expenses:
Cost of services and sales	1,904,000,000		3,860,000,000	7,394,000,000		12,220,000,000
Product sales [Member]
Revenue:
Revenue	907,000,000		1,343,000,000	3,268,000,000		4,099,000,000
Operating costs and expenses:
Cost of services and sales	$ 755,000,000		$ 1,101,000,000	$ 2,663,000,000		$ 3,317,000,000

[1] For the three months ended September 30, 2020, amount includes approximately $90 million attributable to Completion and Production, $40 million attributable to Drilling and Evaluation, and $3 million attributable to Corporate and other. For the nine months ended September 30, 2020, amount includes $2.1 billion attributable to Completion and Production, $1.2 billion attributable to Drilling and Evaluation, and $44 million attributable to Corporate and other. For the nine months ended September 30, 2019, amount includes $127 million attributable to Completion and Production, $153 million attributable to Drilling and Evaluation, and $28 million attributable to Corporate and other. See Note 2 for further discussion on these impairments and other charges. There were no impairments and other charges recorded during the three months ended September 30, 2019.

[2] For the nine months ended September 30, 2020, amount includes a $168 million loss on extinguishment of debt related to the early repurchase of senior notes. See Note 6 for further discussion on this charge.