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SUPPLEMENTAL FINANCIAL STATEMENT DATA - Accounts Receivable - Concentration Risk (Details)	12 Months Ended
	Dec. 30, 2022	Dec. 31, 2021
Accounts Receivable | Credit Concentration Risk | Consolidated Edison of New York
Concentration Risk
Concentration risk (as a percent)	10.30%	19.80%

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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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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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