Property, Plant and Equipment - Narrative (Details) $ in Thousands	1 Months Ended	3 Months Ended		12 Months Ended
	Mar. 31, 2021 USD ($)	Dec. 31, 2021 USD ($)	Mar. 31, 2021 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($) business	Dec. 31, 2018 USD ($)	Sep. 30, 2021	Jul. 31, 2019 USD ($)
Property, Plant and Equipment [Line Items]
Proceeds from sale of oil and gas property and equipment	$ 267,700
Impairment of assets		$ 25,000		$ 196,296	$ 1,206,284	$ 0
Total capitalized exploratory well costs		179,481		179,481	181,616	217,326	$ 207,855
Exploratory well costs capitalized more than one year		166,200		166,200
LLOG Exploration Offshore L.L.C. and LLOG Bluewater Holdings, L.L.C.
Property, Plant and Equipment [Line Items]
Acquisition, cash paid						$ 1,236,200
LLOG Exploration Offshore L.L.C. and LLOG Bluewater Holdings, L.L.C. | Sales thresholds 2019 to 2025
Property, Plant and Equipment [Line Items]
Contingent consideration, maximum		200,000		200,000
LLOG Exploration Offshore L.L.C. and LLOG Bluewater Holdings, L.L.C. | Net crude oil and condensate revenue
Property, Plant and Equipment [Line Items]
Contingent consideration, maximum		$ 50,000		50,000
Petrobas America Inc
Property, Plant and Equipment [Line Items]
Acquisition, cash paid							780,700
Petrobas America Inc | Sales thresholds 2019 to 2025
Property, Plant and Equipment [Line Items]
Contingent consideration, maximum							150,000
Petrobas America Inc | Enhanced oil recovery projects
Property, Plant and Equipment [Line Items]
Contingent consideration, maximum							$ 50,000
Terra Nova
Property, Plant and Equipment [Line Items]
Impairment of assets			$ 171,300	$ 25,000
Additional percentage acquired through commercial settlement		7.525%		7.525%				7.525%
Malaysia
Property, Plant and Equipment [Line Items]
Number of divested businesses (in businesses) | business						2
Disposal group including discontinued operation, consideration									$ 2,000,000
Gain (loss) on disposition of business						$ 985,400
Disposal group including discontinued operation, contingent consideration paid									$ 100,000
Vietnam
Property, Plant and Equipment [Line Items]
Exploratory well costs capitalized more than one year		$ 93,100		$ 93,100
U.S.
Property, Plant and Equipment [Line Items]
Impairment of assets				0	1,152,515	0
Exploratory well costs capitalized more than one year		45,000		45,000
Brunei
Property, Plant and Equipment [Line Items]
Exploratory well costs capitalized more than one year		7,900		7,900
MEXICO
Property, Plant and Equipment [Line Items]
Exploratory well costs capitalized more than one year		15,300		15,300
Canada
Property, Plant and Equipment [Line Items]
Impairment of assets				171,296	$ 0	$ 0
Exploratory well costs capitalized more than one year		$ 4,800		$ 4,800