Risk Management (Narrative) (Details) - Price Risk Contracts - Maximum	12 Months Ended
Dec. 31, 2021
Derivative [Line Items]
Remaining maturity	37 months
Percent of contracts expiring in next twelve months	87.00%

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.

No definition available.

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