Number of acres acquired net.

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- Definition

Amount of transaction cost incurred to effect business combination. Excludes separately recognized transaction and indirect cost.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale.

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Acquisitions and Divestitures (Narrative) (Details) $ in Millions, $ in Millions			3 Months Ended
	Jan. 31, 2025 USD ($) a	Jan. 31, 2025 CAD ($) a	Mar. 31, 2026 USD ($)	Mar. 31, 2025 USD ($)
Acquisitions and Divestitures [Line Items]
Proceeds from divestitures			$ 7	$ 1,884
Transaction costs			$ 26
Montney Acquisition [Member]
Acquisitions and Divestitures [Line Items]
Proceeds from divestitures		$ 3,328
Number of acres acquired \| a	109,000	109,000
Cash paid for acquisition	$ 2,308
USA Operations [Member] \| Operating Segments [Member]
Acquisitions and Divestitures [Line Items]
Proceeds from divestitures				1,884
USA Operations [Member] \| Operating Segments [Member] \| Uinta and Bakken Assets [Member]
Acquisitions and Divestitures [Line Items]
Proceeds from divestitures				$ 1,882