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GENERAL INFORMATION AND OTHER FINANCIAL DATA - SHAREHOLDERS’ EQUITY AND NONCONTROLLING INTERESTS NARRATIVE (Details) - USD ($) $ / shares in Units, $ in Millions |  |  |  |  | 1 Months Ended | 3 Months Ended | 6 Months Ended |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Mar. 20, 2023 | Jun. 01, 2022 | Apr. 06, 2022 | Jan. 11, 2022 | Mar. 31, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022 | Aug. 02, 2023 | May 12, 2023 | May 11, 2023 | Dec. 31, 2022 | Dec. 21, 2021 | Oct. 01, 2021
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock, shares authorized (in shares) |  |  |  |  |  |  | 1,125,000,000 |  | 1,125,000,000 |  |  | 1,125,000,000 | 750,000,000 | 1,125,000,000 |  |
Increase in equity |  |  |  |  |  |  | $ 498.0 | $ 7.0 | $ 595.0 | $ 13.0 |  |  |  |  |  |
Increase in shareholders' equity |  |  |  |  |  |  |  | $ 1,418.0 | 255.0 | $ 1,418.0 |  |  |  |  |  |
Port Arthur LNG |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Increase in equity | $ 237.0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
SI Partners |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Increase in shareholders' equity |  |  |  |  |  |  |  |  | 186.0 |  |  |  |  |  |  |
Sale of noncontrolling interest, change in equity |  |  |  |  |  |  |  |  | 134.0 |  |  |  |  |  |  |
Sempra Infrastructure | SI Partners |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Increase in shareholders' equity |  | $ 709.0 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sale of noncontrolling interest, change in equity |  | 710.0 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sale of noncontrolling interest, transaction costs |  | 12.0 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Reduction to deferred income tax liability |  | 300.0 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sale of noncontrolling interest, transaction costs reimbursed |  | $ 10.0 |  |  |  |  |  |  |  |  |  |  |  |  |  |
KKR Denali | SI Partners |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash consideration for minimum amount of interest transferred |  |  |  |  | $ 108.0 |  |  |  |  |  |  |  |  |  |  |
Share of development costs incurred, threshold |  |  |  |  | 439.0 |  |  |  |  |  |  |  |  |  |  |
Termination fee |  |  |  |  | $ 130.0 |  |  |  |  |  |  |  |  |  |  |
Indirect Subsidiary Of SI Partners | Port Arthur LNG |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash consideration | 265.0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Increase in shareholders' equity | 18.0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sale of noncontrolling interest, transaction costs | 3.0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sale of noncontrolling interest, tax impacts | 7.0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Funding commitment, aggregate amount | $ 9,000.0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
KKR | SI Partners |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Funding commitment, aggregate amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 200.0
Funding used |  |  |  |  |  |  | $ 186.0 |  | $ 186.0 |  |  |  |  |  |  |
Subsequent Event |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock, shares authorized (in shares) |  |  |  |  |  |  |  |  |  |  | 1,125,000,000 |  |  |  |  |
Port Arthur LNG | Indirect Subsidiary Of SI Partners |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership interest (as a percent) | 30.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Funding commitment (in percent) | 110.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Guaranteed funding amount (in percent) | 70.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Port Arthur LNG | Minimum | KKR Denali |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership interest (as a percent) |  |  |  |  |  |  | 19.60% |  | 19.60% |  |  |  |  |  |  |
SI Partners | Sempra Infrastructure |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership interest (as a percent) |  |  |  |  |  |  | 30.00% |  | 30.00% |  |  |  |  | 30.00% |  |
SI Partners | KKR Denali |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership percentage, minimum indirect interest transferred (in percent) |  |  |  |  |  | 42.00% |  |  |  |  |  |  |  |  |  |
SI Partners | Abu Dhabi Investment Authority |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sale of noncontrolling interest (as a percent) |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 10.00% |
Sale of noncontrolling interest, aggregate purchase price |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,700.0 |
SI Partners | KKR |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership interest (as a percent) |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 20.00% | 20.00%
SI Partners | Abu Dhabi Investment Authority |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership interest (as a percent) |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 10.00% |
SI Partners | Sempra |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership interest (as a percent) |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 70.00% |
SI Partners subsidiaries | Minimum | Sempra Infrastructure |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership interest (as a percent) |  |  |  |  |  |  | 0.10% |  | 0.10% |  |  |  |  | 0.10% |  |
SI Partners subsidiaries | Maximum | Sempra Infrastructure |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership interest (as a percent) |  |  |  |  |  |  | 30.00% |  | 30.00% |  |  |  |  | 16.60% |  |
Common stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share repurchase program, number of shares repurchased (in shares) |  |  | 1,471,957 | 1,472,756 |  |  |  |  | 197,770 | 196,592 |  |  |  |  |  |
Common stock repurchased |  |  |  |  |  |  |  |  | $ 31.0 | $ 26.0 |  |  |  |  |  |
Accelerated share repurchase program, prepaid amount |  |  | $ 250.0 | $ 200.0 |  |  |  |  |  |  |  |  |  |  |  |
Common stock repurchased, average price (in dollars per share) |  |  | $ 169.84 | $ 135.80 |  |  |  |  |  |  |  |  |  |  |  |

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