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Goodwill and Intangible Assets - Narrative (Details)			12 Months Ended
Goodwill and Intangible Assets - Narrative (Details)	Jul. 01, 2021 USD ($)	Mar. 31, 2020 USD ($)	Dec. 31, 2021 USD ($) segment	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Mar. 23, 2020 $ / shares
Goodwill and Intangible Assets Disclosure [Abstract]
Number of reportable segments \| segment			4
Number of reporting units \| segment			4
Finite-Lived Intangible Assets [Line Items]
Goodwill impairment	$ 0		$ 0	$ 14,717,000,000	$ 0
Share price (in dollars per share) \| $ / shares						$ 9.33
Amortization expense for intangible assets			$ 253,000,000	$ 308,000,000	$ 365,000,000
Minimum
Finite-Lived Intangible Assets [Line Items]
Estimated weighted average life (years)			1 year
Maximum
Finite-Lived Intangible Assets [Line Items]
Estimated weighted average life (years)			35 years
Oilfield Services
Finite-Lived Intangible Assets [Line Items]
Goodwill impairment		$ 11,428,000,000
Oilfield Equipment
Finite-Lived Intangible Assets [Line Items]
Goodwill impairment		$ 3,289,000,000