ACQUISTIONS, DIVESTITURES AND DISCONTINUED OPERATIONS - Discontinued Operations (Details) - USD ($) $ in Millions	1 Months Ended		12 Months Ended
	Jun. 30, 2020	Apr. 30, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income from discontinued operations, net of income tax			$ 0	$ 1,850	$ 363
Earnings attributable to noncontrolling interests			0	(10)	(35)
Earnings from discontinued operations attributable to common shares			0	1,840	328
Restricted cash			0	0	75
Assets held for sale in discontinued operations			0	0	445
Noncurrent assets			0	0	3,513
Liabilities held for sale in discontinued operations			0	0	444
Noncurrent liabilities			$ 0	0	1,052
Discontinued Operations, Held-for-sale | Sempra South American Utilities
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
After tax gain on sale				2,899	0
Revenues				570	1,614
Cost of sales				(364)	(1,012)
Operating expenses				(66)	(159)
Interest and other				(3)	(11)
Income before income taxes and equity earnings				3,036	432
Income tax expense				(1,186)	(72)
Equity earnings				0	3
Income from discontinued operations, net of income tax				1,850	363
Earnings from discontinued operations attributable to common shares				1,840	328
Cash and cash equivalents				4,600	74
Restricted cash					1
Accounts receivable, net					303
Due from unconsolidated affiliates					2
Inventories					36
Other current assets					29
Assets held for sale in discontinued operations					445
Due from unconsolidated affiliates					54
Goodwill and other intangible assets					801
Property, plant and equipment, net					2,618
Other noncurrent assets					40
Noncurrent assets					3,513
Short-term debt					52
Accounts payable					201
Current portion of long-term debt and finance leases					85
Other current liabilities					106
Liabilities held for sale in discontinued operations					444
Long-term debt and finance leases					702
Deferred income taxes					284
Other noncurrent liabilities					66
Noncurrent liabilities					$ 1,052
Cumulative foreign currency translation adjustments				$ 645
Discontinued Operations, Held-for-sale | Sempra South American Utilities | Luz Del Sur
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from sale		$ 3,549
Pretax gain on sale		2,271
After tax gain on sale		$ 1,499
Discontinued Operations, Held-for-sale | Sempra South American Utilities | Chilquinta Energia
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from sale	$ 2,216
Pretax gain on sale	628
After tax gain on sale	$ 248
Luz Del Sur | Discontinued Operations, Held-for-sale | Sempra South American Utilities
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Ownership interest (as a percent)			83.60%
Eletrans | Discontinued Operations, Held-for-sale | Sempra South American Utilities
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Ownership interest (as a percent)	50.00%
Chilquinta Energia | Discontinued Operations, Held-for-sale | Sempra South American Utilities
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Ownership interest (as a percent)			100.00%
PXISE Energy Solutions LLC | Parent and Other
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Ownership interest (as a percent)			80.00%