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Variable Interest Entities (Narrative) (Details) $ in Millions	12 Months Ended
	Dec. 31, 2025 USD ($) MMcf	Dec. 31, 2024 USD ($)
Variable Interest Entity [Line Items]
Accounts payable and accrued liabilities, current	$ 1,861	$ 1,883
Veresen Midstream Limited Partnership [Member]
Variable Interest Entity [Line Items]
Variable interest entity, financial support, term of assessment	8 years
Variable interest entity, reporting entity involvement, maximum loss exposure, amount	$ 760
Veresen Midstream Limited Partnership [Member] | Take or Pay Commitment [Member]
Variable Interest Entity [Line Items]
Accounts payable and accrued liabilities, current	29	20
Veresen Midstream Limited Partnership [Member] | Payout of Minimum Costs [Member]
Variable Interest Entity [Line Items]
Accounts payable and accrued liabilities, current	$ 29	$ 20
Veresen Midstream Limited Partnership [Member] | Natural gas gathering and compression [Member]
Variable Interest Entity [Line Items]
Contracted capacity volumes | MMcf	1,152
Veresen Midstream Limited Partnership [Member] | Natural gas processing [Member]
Variable Interest Entity [Line Items]
Contracted capacity volumes | MMcf	913
Veresen Midstream Limited Partnership [Member] | Minimum [Member]
Variable Interest Entity [Line Items]
Length of remaining terms, in years	6 years
Veresen Midstream Limited Partnership [Member] | Maximum [Member]
Variable Interest Entity [Line Items]
Length of remaining terms, in years	20 years
Length of renewal term, in years	10 years

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Contracted gas processing and/or gas gathering and compression volumes under long-term contracts.

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The point in time, in years, when the assessment will be made to determine whether payout of minimum cost will be made by the reporting entity to the variable interest entity, on certain service agreements, to cover shortfall of cash flows.

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Sum of the carrying values as of the balance sheet date of obligations incurred through that date and due within one year (or the operating cycle, if longer), including liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received, taxes, interest, rent and utilities, accrued salaries and bonuses, payroll taxes and fringe benefits.

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The reporting entity's maximum amount of exposure to loss as a result of its involvement with the Variable Interest Entity (VIE).

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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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