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SEGMENT INFORMATION - Revenue By Services (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Energy-related businesses | $ 528 | $ 512 | $ 1,408 | $ 1,360
Revenues from contracts with customers | 2,756 | 2,569 | 9,137 | 8,750
Revenues | 3,151 | 2,776 | 9,953 | 9,427
Operating Segments After Reconciling Items And Eliminations |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Revenues from contracts with customers | 2,756 | 2,570 | 9,137 | 8,751
Total other revenues | 395 | 207 | 816 | 677
Operating Segments After Reconciling Items And Eliminations | Sempra California |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Operating revenues | 2,513 | 2,388 | 8,412 | 8,113
Energy-related businesses | 0 | 0 | 0 | 0
Revenues from contracts with customers | 2,513 | 2,388 | 8,412 | 8,113
Utilities | 95 | (138) | 74 | (107)
Energy-related businesses | 0 | 0 | 0 | 0
Total other revenues | 95 | (138) | 74 | (107)
Operating Segments After Reconciling Items And Eliminations | Sempra Infrastructure |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Operating revenues | 15 | 15 | 59 | 63
Energy-related businesses | 228 | 167 | 666 | 575
Revenues from contracts with customers | 243 | 182 | 725 | 638
Utilities | 0 | 0 | 0 | 0
Energy-related businesses | 300 | 345 | 742 | 784
Total other revenues | 300 | 345 | 742 | 784
Segment revenues |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Revenues | 3,168 | 2,794 | 10,015 | 9,488
Segment revenues | Sempra California |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Revenues from contracts with customers | 2,518 | 2,394 | 8,430 | 8,129
Revenues | 2,613 | 2,256 | 8,504 | 8,022
Segment revenues | Sempra Infrastructure |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Revenues from contracts with customers | 256 | 194 | 775 | 688
Revenues | 555 | 538 | 1,511 | 1,466
Adjustments |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Revenues | 0 | (1) | 0 | (1)
Intersegment revenues and eliminations |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Revenues | (17) | (17) | (62) | (60)
Intersegment revenues and eliminations | Sempra California |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Operating revenues | (5) | (6) | (18) | (16)
Energy-related businesses | 0 | 0 | 0 | 0
Revenues | (5) | (6) | (18) | (16)
Intersegment revenues and eliminations | Sempra Infrastructure |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Operating revenues | 0 | 0 | 0 | 0
Energy-related businesses | (12) | (11) | (44) | (44)
Revenues | $ (12) | $ (11) | $ (44) | $ (44)

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