Gas and NGLs Stored Underground and Gas and NGLs Receivables and Payables (Details) MMBbls in Millions, MMBTU in Millions, $ in Millions |
Jun. 30, 2025
USD ($)
$ / MMBTU
MMBTU
MMBbls
pounds
|
Dec. 31, 2024
USD ($)
$ / MMBTU
MMBTU
MMBbls
pounds
|
|---|---|---|
| Oil and Gas, Gas-Balancing Arrangement [Abstract] | ||
| Gas balancing measurement (in TBtu) | MMBTU | 16.8 | 9.8 |
| Average market price of gas assumed (in dollars per MMBTU) | $ / MMBTU | 2.93 | 2.98 |
| Gas imbalance to subsidiaries asset liability | $ 49.2 | $ 29.2 |
| Natural gas liquids balancing measurement (in MMBbls) | MMBbls | 0.1 | 0.1 |
| Natural gas liquids imbalance to subsidiaries of asset liability | $ 0.1 | $ 0.3 |
| Ethylene loaned volume (in pounds) | pounds | 0 | 0 |