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SIGNIFICANT ACCOUNTING POLICIES AND OTHER FINANCIAL DATA - RESTRICTED NET ASSETS (Details) $ in Millions | 1 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Mar. 31, 2023 | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($)
Significant Restrictions of Subsidiaries [Line Items] |  |  |
Undistributed earnings from equity method investments |  | $ 2,500 | $ 2,000
Cameron LNG |  |  |
Significant Restrictions of Subsidiaries [Line Items] |  |  |
Ownership percentage in equity method investee |  | 50.20% |
Indirect economic and beneficial and ownership interest after financial completion |  | 10.00% |
Sharyland Holdings, LP |  |  |
Significant Restrictions of Subsidiaries [Line Items] |  |  |
Ownership percentage in equity method investee |  | 50.00% |
Oncor Holdings | Oncor Holdings |  |  |
Significant Restrictions of Subsidiaries [Line Items] |  |  |
Ownership percentage in equity method investee |  | 100.00% |
Oncor Holdings | Oncor Electric Delivery Company LLC |  |  |
Significant Restrictions of Subsidiaries [Line Items] |  |  |
Ownership percentage in equity method investee |  | 80.25% |
Sempra Texas Utilities | Oncor Holdings |  |  |
Significant Restrictions of Subsidiaries [Line Items] |  |  |
Plan percentage of capital structure allocated to equity |  | 42.50% |
Plan percentage of capital structure allocated to debt |  | 57.50% |
Sempra Texas Utilities | Oncor Electric Delivery Company LLC |  |  |
Significant Restrictions of Subsidiaries [Line Items] |  |  |
Maximum ratio of indebtedness to total capitalization |  | 0.65 |
Sempra Infrastructure | Cameron LNG |  |  |
Significant Restrictions of Subsidiaries [Line Items] |  |  |
Ownership percentage in equity method investee |  | 50.20% |
Consolidated Entities |  |  |
Significant Restrictions of Subsidiaries [Line Items] |  |  |
Restricted net assets of consolidated or unconsolidated subsidiaries |  | $ 17,100 |
Unconsolidated Entities |  |  |
Significant Restrictions of Subsidiaries [Line Items] |  |  |
Restricted net assets of consolidated or unconsolidated subsidiaries |  | 15,000 |
SDG&E |  |  |
Significant Restrictions of Subsidiaries [Line Items] |  |  |
Restricted net assets of consolidated or unconsolidated subsidiaries |  | 9,600 |
Amount available for dividend distribution and loans without prior approval from regulatory agency |  | $ 442 |
Plan percentage of capital structure allocated to equity |  | 52.00% |
Maximum ratio of indebtedness to total capitalization |  | 0.65 |
SoCalGas |  |  |
Significant Restrictions of Subsidiaries [Line Items] |  |  |
Restricted net assets of consolidated or unconsolidated subsidiaries |  | $ 7,100 |
Amount available for dividend distribution and loans without prior approval from regulatory agency |  | $ 330 |
Plan percentage of capital structure allocated to equity |  | 52.00% |
Maximum ratio of indebtedness to total capitalization |  | 0.65 |
Sempra Texas Utilities | Sharyland Utilities |  |  |
Significant Restrictions of Subsidiaries [Line Items] |  |  |
Maximum ratio of indebtedness to total capitalization |  | 0.70 |
Plan percentage of capital structure allocated to debt |  | 60.00% |
Sempra Texas Utilities | Sharyland Holdings, LP | Sharyland Holdings, LP |  |  |
Significant Restrictions of Subsidiaries [Line Items] |  |  |
Ownership percentage in equity method investee |  | 50.00% |
Sempra Texas Utilities | Sharyland Holdings, LP | Sharyland Utilities |  |  |
Significant Restrictions of Subsidiaries [Line Items] |  |  |
Ownership percentage in equity method investee |  | 100.00% |
Oncor Electric Delivery Company LLC |  |  |
Significant Restrictions of Subsidiaries [Line Items] |  |  |
Restricted net assets of consolidated or unconsolidated subsidiaries |  | $ 14,200 |
Port Arthur LNG |  |  |
Significant Restrictions of Subsidiaries [Line Items] |  |  |
Restricted net assets of consolidated or unconsolidated subsidiaries |  | $ 47 |
Port Arthur LNG | Port Arthur LNG Committed Line Of Credit Due March 2030 | Line of Credit |  |  |
Significant Restrictions of Subsidiaries [Line Items] |  |  |
Term of contract (in years) | 7 years | 7 years |
Sempra Infrastructure |  |  |
Significant Restrictions of Subsidiaries [Line Items] |  |  |
Restricted net assets of consolidated or unconsolidated subsidiaries |  | $ 102 |
Sharyland Utilities |  |  |
Significant Restrictions of Subsidiaries [Line Items] |  |  |
Restricted net assets of consolidated or unconsolidated subsidiaries |  | 123 |
Cameron LNG JV | Sempra Infrastructure |  |  |
Significant Restrictions of Subsidiaries [Line Items] |  |  |
Restricted net assets of consolidated or unconsolidated subsidiaries |  | 453 |
Mexican Subsidiaries | Sempra Infrastructure |  |  |
Significant Restrictions of Subsidiaries [Line Items] |  |  |
Restricted net assets of consolidated or unconsolidated subsidiaries |  | 292 |
Gasoductos De Chihuahua [Member] | Sempra Infrastructure |  |  |
Significant Restrictions of Subsidiaries [Line Items] |  |  |
Restricted net assets of consolidated or unconsolidated subsidiaries |  | 2 |
TAG Pipelines Norte | Sempra Infrastructure |  |  |
Significant Restrictions of Subsidiaries [Line Items] |  |  |
Restricted net assets of consolidated or unconsolidated subsidiaries |  | $ 215 |
TAG Pipelines Norte | Sempra Infrastructure | Cameron LNG |  |  |
Significant Restrictions of Subsidiaries [Line Items] |  |  |
Ownership percentage in equity method investee |  | 50.00% |

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