Summary of Significant Accounting Policies Property - Schedule of Related Party Transactions (Details) - USD ($) $ in Millions	11 Months Ended	12 Months Ended
	Dec. 02, 2021	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Related Party Transaction [Line Items]
Operating revenues		$ 2,674.3	$ 3,375.7	$ 3,653.7
Og and E [Member]
Related Party Transaction [Line Items]
Operating revenues		$ 2,674.3	$ 3,375.7	$ 3,653.7
Og and E [Member] | Enable Midstream Partners [Member]
Related Party Transaction [Line Items]
Operating revenues	$ 13.3
Og and E [Member] | Enable Midstream Partners [Member] | Natural Gas Transportation [Member]
Related Party Transaction [Line Items]
Related Party Transaction, Purchases from Related Party	32.7
Og and E [Member] | Enable Midstream Partners [Member] | Natural Gas Sales [Member]
Related Party Transaction [Line Items]
Related Party Transaction, Purchases and Sales from Related Party	$ (33.5)