Fair Value Measurement - Narrative (Details) BTU in Millions, $ in Millions	9 Months Ended
	Sep. 30, 2024 USD ($) BTU
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Natural gas commodity program, notional amount, heating content | BTU	10
Receivables sold under these accounts receivable monetization agreements	$ 711
Expense related to sale of receivables	12
700 Million Receivable Monetization Facility
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Maximum eligible receivables that may be sold	700
110 Million Receivable Monetization Facility
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Maximum eligible receivables that may be sold	$ 110