Affiliate Transactions (Details) - Affiliated Entity $ in Millions	12 Months Ended
	Dec. 31, 2023 USD ($) Number_of_extensions	Dec. 31, 2022 USD ($)
Related Party Transaction [Line Items]
Note receivable - affiliate	$ 1,466	$ 1,468
Lumen Technologies
Related Party Transaction [Line Items]
Note receivable - affiliate	$ 1,500	$ 1,500
Interest rate	4.25%
Number of allowed extensions of maturity date | Number_of_extensions	2
Extension period	1 year