Long-Lived Asset Impairments (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Impaired Long-Lived Assets Held and Used [Line Items]
Property, Plant and Equipment			$ 571
Intangible Assets			155
Operating Lease Assets			88
Long-lived Assets Impairment	$ 0	$ 0	814
Goodwill Impairment	0	0	239
Total Goodwill and Long-lived Assets Impairment	$ 0	$ 0	1,053
Corporate and Other
Impaired Long-Lived Assets Held and Used [Line Items]
Property, Plant and Equipment			18
Intangible Assets			0
Operating Lease Assets			0
Long-lived Assets Impairment			18
Drilling and Evaluation
Impaired Long-Lived Assets Held and Used [Line Items]
Property, Plant and Equipment			195
Intangible Assets			76
Operating Lease Assets			14
Long-lived Assets Impairment			285
Well Construction and Completions
Impaired Long-Lived Assets Held and Used [Line Items]
Property, Plant and Equipment			126
Intangible Assets			39
Operating Lease Assets			20
Long-lived Assets Impairment			185
Production and Intervention
Impaired Long-Lived Assets Held and Used [Line Items]
Property, Plant and Equipment			232
Intangible Assets			40
Operating Lease Assets			54
Long-lived Assets Impairment			$ 326