Investments and Advances - Summary of Investment and Advances and Equity in Earnings (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Schedule of Equity Method Investments [Line Items]
Investments and Advances	$ 44,610	$ 40,357
Other non-equity method investments	628	339
Total investments and advances	45,238	40,696
Equity in Earnings	8,585	5,657	$ (472)
United States | Investments and Advances
Schedule of Equity Method Investments [Line Items]
Total investments and advances	9,855	8,540
United States | Equity in Earnings
Schedule of Equity Method Investments [Line Items]
Equity in Earnings	975	1,889	709
International | Investments and Advances
Schedule of Equity Method Investments [Line Items]
Total investments and advances	35,383	32,156
International | Equity in Earnings
Schedule of Equity Method Investments [Line Items]
Equity in Earnings	7,610	3,768	(1,181)
All Other
Schedule of Equity Method Investments [Line Items]
Investments and Advances	(5)	(10)
Equity in Earnings	(6)	1	0
Upstream | Operating Segments
Schedule of Equity Method Investments [Line Items]
Investments and Advances	31,196	28,571
Equity in Earnings	6,626	3,509	(1,140)
Upstream | Operating Segments | Tengizchevroil
Schedule of Equity Method Investments [Line Items]
Investments and Advances	26,534	23,727
Equity in Earnings	4,386	2,831	1,238
Upstream | Operating Segments | Petropiar
Schedule of Equity Method Investments [Line Items]
Investments and Advances	0	0
Equity in Earnings	0	0	(1,396)
Upstream | Operating Segments | Petroboscan
Schedule of Equity Method Investments [Line Items]
Investments and Advances	0	0
Equity in Earnings	0	0	(1,112)
Upstream | Operating Segments | Caspian Pipeline Consortium
Schedule of Equity Method Investments [Line Items]
Investments and Advances	761	805
Equity in Earnings	128	155	159
Upstream | Operating Segments | Angola LNG Limited
Schedule of Equity Method Investments [Line Items]
Investments and Advances	1,963	2,180
Equity in Earnings	1,857	336	(166)
Upstream | Operating Segments | Other
Schedule of Equity Method Investments [Line Items]
Investments and Advances	1,938	1,859
Equity in Earnings	255	187	137
Downstream | Operating Segments
Schedule of Equity Method Investments [Line Items]
Investments and Advances	13,419	11,796
Equity in Earnings	1,965	2,147	668
Downstream | Operating Segments | Chevron Phillips Chemical Company LLC
Schedule of Equity Method Investments [Line Items]
Investments and Advances	6,843	6,455
Equity in Earnings	867	1,842	630
Downstream | Operating Segments | GS Caltex Corporation
Schedule of Equity Method Investments [Line Items]
Investments and Advances	4,288	3,616
Equity in Earnings	874	85	(185)
Downstream | Operating Segments | Other
Schedule of Equity Method Investments [Line Items]
Investments and Advances	2,288	1,725
Equity in Earnings	$ 224	$ 220	$ 223