Agreement to Acquire Noble Energy, Inc.	6 Months Ended
	Jun. 30, 2020
Subsequent Events [Abstract]
Agreement to Acquire Noble Energy, Inc.	Agreement to Acquire Noble Energy, Inc.On July 20, 2020, Chevron Corporation announced it had entered into a definitive agreement with Noble Energy, Inc. to acquire all of its outstanding shares in an all-stock transaction, valued at approximately $5 billion, pursuant to which Noble Energy stockholders will receive 0.1191 shares of Chevron common stock for each Noble Energy share. The transaction was approved by the Boards of Directors of both companies and is anticipated to close in fourth quarter 2020. The company will also assume Noble Energy debt balances, which were $8.7 billion as of March 31, 2020. The acquisition is subject to Noble Energy stockholder approval. It is also subject to regulatory approvals and other customary closing conditions. See Item 1A. “Risk Factors” for a discussion of risks related to the Noble Energy acquisition.