COMMITMENTS AND CONTINGENCIES: (Tables) |
6 Months Ended | |||||||||||||||||||||||||||||||||||
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Jun. 30, 2026 | ||||||||||||||||||||||||||||||||||||
| COMMITMENTS AND CONTINGENCIES: | ||||||||||||||||||||||||||||||||||||
| Schedule of environmental capital investments | Environmental capital investments in the six-month periods ended June 30, 2026 and 2025 were as follows (in millions):
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