Gas and Liquids Stored Underground and Gas and NGLs Receivables and Payables (Details) MMBbls in Millions, MMBTU in Millions, $ in Millions	Sep. 30, 2022 USD ($) $ / MMBTU MMBTU MMBbls	Dec. 31, 2021 USD ($) $ / MMBTU MMBTU MMBbls
Gas Balancing Arrangements [Abstract]
Gas Balancing Measurement (in MMBtu) | MMBTU	11.3	7.4
Average Market Price of Gas Assumed | $ / MMBTU	7.26	3.59
Gas Imbalance to Subsidiaries Asset Liability | $	$ 82.0	$ 26.6
Natural Gas Liquids Balancing Volume (in MMbbls) | MMBbls	0.0	0.0