Property, Plant and Equipment, Net (Tables)
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3 Months Ended |
Mar. 31, 2026 |
| Property, Plant and Equipment [Line Items] |
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| Property, Plant and Equipment |
Property, plant and equipment, net consists of the following (in millions): | | | | | | | | | | | | | | | | | | | | | As of | | Depreciable | | March 31, | | December 31, | | Life | | 2026 | | 2025 | | Regulated assets: | | | | | | | Utility generation, transmission and distribution systems | 5-80 years | | $ | 108,515 | | | $ | 109,815 | | | Interstate natural gas pipeline assets | 3-80 years | | 21,495 | | | 21,334 | | | | | 130,010 | | | 131,149 | | | Accumulated depreciation and amortization | | | (40,416) | | | (40,365) | | | Regulated assets, net | | | 89,594 | | | 90,784 | | | | | | | | | Nonregulated assets: | | | | | | | Independent power plants | 2-50 years | | 9,590 | | | 9,242 | | | Cove Point LNG facility | 40 years | | 3,475 | | | 3,476 | | | Other assets | 2-30 years | | 2,571 | | | 2,912 | | | | | 15,636 | | | 15,630 | | | Accumulated depreciation and amortization | | | (4,757) | | | (4,637) | | | Nonregulated assets, net | | | 10,879 | | | 10,993 | | | | | | | | | | | 100,473 | | | 101,777 | | | Construction work-in-progress | | | 11,093 | | | 10,591 | | | Property, plant and equipment, net | | | $ | 111,566 | | | $ | 112,368 | |
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| PAC |
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| Property, Plant and Equipment [Line Items] |
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| Public Utility Property, Plant, and Equipment |
Property, plant and equipment, net consists of the following (in millions): | | | | | | | | | | | | | | | | | | | | | | As of | | | | | March 31, | | December 31, | | Depreciable Life | | 2026 | | 2025 | | Utility plant: | | | | | | | Generation | 15 - 59 years | | $ | 14,272 | | | $ | 15,114 | | | Transmission | 60 - 90 years | | 11,425 | | | 11,732 | | | Distribution | 20 - 75 years | | 10,587 | | | 11,127 | | Intangible plant and other | 2 - 75 years | | 2,605 | | | 2,667 | | | Utility plant in-service | | | 38,889 | | | 40,640 | | | Accumulated depreciation and amortization | | | (12,617) | | | (12,875) | | | Utility plant in-service, net | | | 26,272 | | | 27,765 | | | Nonregulated, net of accumulated depreciation and amortization | 34 - 75 years | | 18 | | | 18 | | | | | 26,290 | | | 27,783 | | | Construction work-in-progress | | | 3,635 | | | 3,330 | | | Property, plant and equipment, net | | | $ | 29,925 | | | $ | 31,113 | |
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| MEC |
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| Property, Plant and Equipment [Line Items] |
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| Public Utility Property, Plant, and Equipment |
Property, plant and equipment, net consists of the following (in millions): | | | | | | | | | | | | | | | | | | | | | As of | | | | March 31, | | December 31, | | Depreciable Life | | 2026 | | 2025 | | Utility plant: | | | | | | | Generation | 20-62 years | | $ | 18,677 | | | $ | 18,804 | | | Transmission | 55-80 years | | 3,310 | | | 3,297 | | | Electric distribution | 15-80 years | | 6,395 | | | 6,326 | | | Natural gas distribution | 30-75 years | | 2,615 | | | 2,600 | | | Utility plant in-service | | | 30,997 | | | 31,027 | | | Accumulated depreciation and amortization | | | (8,410) | | | (8,304) | | | Utility plant in-service, net | | | 22,587 | | | 22,723 | | | | | | | | | | | | | | | | | | | | Nonregulated, net of accumulated depreciation and amortization | 20-50 years | | 10 | | | 10 | | | | | 22,597 | | | 22,733 | | | Construction work-in-progress | | | 1,502 | | | 1,323 | | | Property, plant and equipment, net | | | $ | 24,099 | | | $ | 24,056 | |
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| NPC |
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| Property, Plant and Equipment [Line Items] |
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| Public Utility Property, Plant, and Equipment |
Property, plant and equipment, net consists of the following (in millions): | | | | | | | | | | | | | | | | | | | | | As of | | Depreciable Life | | March 31, | | December 31, | | | 2026 | | 2025 | | Utility plant: | | | | | | | Generation | 30 - 65 years | | $ | 5,587 | | | $ | 5,542 | | | Transmission | 55 - 75 years | | 1,886 | | | 1,886 | | | Distribution | 24 - 70 years | | 5,115 | | | 5,031 | | Intangible plant and other | 5 - 65 years | | 998 | | | 951 | | | Utility plant | | | 13,586 | | | 13,410 | | | Accumulated depreciation and amortization | | | (4,461) | | | (4,383) | | | Utility plant, net | | | 9,125 | | | 9,027 | | Nonregulated, net of accumulated depreciation and amortization | 40 years | | 1 | | | 1 | | | | | 9,126 | | | 9,028 | | | Construction work-in-progress | | | 1,479 | | | 1,395 | | | Property, plant and equipment, net | | | $ | 10,605 | | | $ | 10,423 | |
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| SPPC |
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| Property, Plant and Equipment [Line Items] |
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| Public Utility Property, Plant, and Equipment |
Property, plant and equipment, net consists of the following (in millions): | | | | | | | | | | | | | | | | | | | | | As of | | Depreciable Life | | March 31, | | December 31, | | | 2026 | | 2025 | | Utility plant: | | | | | | Generation | 25 - 70 years | | $ | 1,730 | | | $ | 1,413 | | Transmission | 50 - 76 years | | 1,361 | | | 1,321 | | | Electric distribution | 20 - 76 years | | 2,341 | | | 2,298 | | Electric intangible plant and other | 5 - 65 years | | 196 | | | 189 | | | Natural gas distribution | 35 - 70 years | | 609 | | | 591 | | Natural gas intangible plant and other | 5 - 65 years | | 19 | | | 19 | | Common other | 5 - 65 years | | 471 | | | 461 | | | Utility plant | | | 6,727 | | | 6,292 | | | Accumulated depreciation and amortization | | | (2,252) | | | (2,296) | | | | | 4,475 | | | 3,996 | | | | | | | | | | | | | | | Construction work-in-progress | | | 1,864 | | | 2,060 | | | Property, plant and equipment, net | | | $ | 6,339 | | | $ | 6,056 | |
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| EEGH |
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| Property, Plant and Equipment [Line Items] |
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| Property, Plant and Equipment |
Property, plant and equipment, net consists of the following (in millions): | | | | | | | | | | | | | | | | | | | | | As of | | | | March 31, | | December 31, | | Depreciable Life | | 2026 | | 2025 | | Utility plant: | | | | | | | Interstate natural gas transmission assets | 34 - 51 years | | $ | 6,664 | | | $ | 6,599 | | Storage assets | 47 - 79 years | | 2,873 | | | 2,856 | | | Intangible plant and other assets | 4 - 53 years | | 528 | | | 514 | | | Utility plant in-service | | | 10,065 | | | 9,969 | | | Accumulated depreciation and amortization | | | (3,606) | | | (3,555) | | | Utility plant in-service, net | | | 6,459 | | | 6,414 | | | | | | | | | Nonutility plant: | | | | | | | | | | | | | LNG facility | 40 years | | 4,583 | | | 4,585 | | | Accumulated depreciation and amortization | | | (933) | | | (901) | | | Nonutility plant, net | | | 3,650 | | | 3,684 | | | | | | | | | | | 10,109 | | | 10,098 | | | Construction work-in-progress | | | 275 | | | 265 | | | Property, plant and equipment, net | | | $ | 10,384 | | | $ | 10,363 | |
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| EGTS |
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| Property, Plant and Equipment [Line Items] |
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| Property, Plant and Equipment |
Property, plant and equipment, net consists of the following (in millions): | | | | | | | | | | | | | | | | | | | | | As of | | | | March 31, | | December 31, | | Depreciable Life | | 2026 | | 2025 | | | | | | | Interstate natural gas transmission assets | 47 - 51 years | | $ | 5,271 | | | $ | 5,213 | | Storage assets | 47 - 51 years | | 1,896 | | | 1,884 | | Intangible plant and other assets | 12 - 53 years | | 420 | | | 408 | | | Plant in-service | | | 7,587 | | | 7,505 | | | Accumulated depreciation and amortization | | | (2,862) | | | (2,824) | | | | | 4,725 | | | 4,681 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Construction work-in-progress | | | 236 | | | 228 | | | Property, plant and equipment, net | | | $ | 4,961 | | | $ | 4,909 | |
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