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Investment in Cenovus Energy - Narrative (Details) - Common Stock - Cenovus Energy Inc shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2022 USD ($) shares
Debt and Equity Securities, FV-NI [Line Items]
Equity securities, shares sold (in shares) | shares	91
Proceeds received from sale of equity securities | $	$ 1,400

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Equity Securities, FV-NI , Shares Sold

+ References

No definition available.

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- Definition

Amount of cash inflow from sale of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI), classified as investing activity.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 19
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482740/230-10-45-19

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-SubTopic 10
-Topic 321
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479567/321-10-45-1

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