Investment in Cenovus Energy	6 Months Ended
Investment in Cenovus Energy	Jun. 30, 2021
Investment In Cenovus Energy [Abstract]
Investment in Cenovus Energy	Note 5—Investment in Cenovus Energy Our investment in CVE shares is carried on our consolidated balance sheet at fair value of $ 1.8 billion based on the closing price of $ 9.58 per share on the NYSE on the last trading day of the quarter. At June 30, 2021 and December 31, 2020, we held 188 million and 208 million shares of CVE common stock, respectively. At June 30, 2021, our investment approximated 9.3 percent of the issued and outstanding CVE common stock. During the second quarter, we sold 20 million shares of our CVE common stock, recognizing proceeds of $ 180 million, of which $ 166 was received in the second quarter. Subject to market conditions, we intend to continue to decrease our investment over time. All gains and losses are recognized within “Other income (loss)” on our consolidated income statement. Proceeds related to the sale of our CVE shares are presented within “Cash Flows from Investing Activities” on our consolidated cash flow statement. Gains and losses recorded in other income (loss) for our investment in CVE were: Millions of Dollars Three Months Ended Six Months Ended June 30 June 30 2021 2020 2021 2020 Total net gain (loss) on equity securities $ 418 551 726 (1,140) Less: Net gain on equity securities sold during the period (31) - (60) - Unrealized gain (loss) on equity securities still held at the reporting date $ 387 551 666 (1,140)