DEBT AND CREDIT FACILITIES - OTHER LONG-TERM DEBT (Details)	1 Months Ended			12 Months Ended
	Aug. 31, 2025 USD ($) business_day	Apr. 30, 2025 USD ($)	Jan. 31, 2025 USD ($)	Dec. 31, 2025 USD ($)	Jul. 31, 2025 USD ($)	Dec. 31, 2024 USD ($)
Debt Instrument [Line Items]
Maximum borrowing capacity				$ 10,200,000,000
Gross long-term debt				$ 11,958,000,000		$ 16,590,000,000
6.375%, Fixed-To-Fixed Reset Rate Junior Subordinated Notes, April 1, 2056 | Junior Subordinated Debt
Debt Instrument [Line Items]
Debt amount	$ 800,000,000
Stated percentage rate	6.375%
Number of days before interest rate period | business_day	2
Variable percentage rate	2.632%
Proceeds from issuance of debt	$ 791,000,000
Underwriting discounts and debt issuance costs	$ 9,000,000
6.375%, Fixed-To-Fixed Reset Rate Junior Subordinated Notes, April 1, 2056 | Junior Subordinated Debt | Debt Instrument, Redemption, Term One
Debt Instrument [Line Items]
Debt instrument, redemption price, percentage	100.00%
6.375%, Fixed-To-Fixed Reset Rate Junior Subordinated Notes, April 1, 2056 | Junior Subordinated Debt | Debt Instrument, Redemption, Term Two
Debt Instrument [Line Items]
Debt instrument, redemption price, percentage	100.00%
6.375%, Fixed-To-Fixed Reset Rate Junior Subordinated Notes, April 1, 2056 | Junior Subordinated Debt | Debt Instrument, Redemption, Term Three
Debt Instrument [Line Items]
Debt instrument, redemption price, percentage	102.00%
Other Long-Term Debt, 4.125% Junior Subordinated Notes Due 2052 | Junior Subordinated Debt
Debt Instrument [Line Items]
Stated percentage rate				4.125%
6.40% Junior Subordinated Notes, Due October 1, 2054 | Junior Subordinated Debt
Debt Instrument [Line Items]
Stated percentage rate				6.40%
6.875% Junior Subordinated Notes, Due October 1, 2054 | Junior Subordinated Debt
Debt Instrument [Line Items]
Stated percentage rate				6.875%
6.550% Junior Subordinated Notes Due 2055 | Junior Subordinated Debt
Debt Instrument [Line Items]
Stated percentage rate				6.55%
6.625% Junior Subordinated Notes Due 2055 | Junior Subordinated Debt
Debt Instrument [Line Items]
Stated percentage rate				6.625%
Other Long-Term Debt, 5.75% Junior Subordinated Notes Due 2079 | Junior Subordinated Debt
Debt Instrument [Line Items]
Stated percentage rate				5.75%
Loan Agreement To Finance Natural Gas Liquefaction Export Facility | ECA LNG Phase 1
Debt Instrument [Line Items]
Maximum borrowing capacity				$ 1,300,000,000	$ 1,500,000,000
Debt instrument, interest rate, effective percentage					2.29%
Debt instrument, basis spread on variable rate, minimum					0.10%
Gross long-term debt				$ 1,300,000,000		$ 1,100,000,000
Weighted average rate				6.06%		7.29%
Loan Agreement To Finance Natural Gas Liquefaction Export Facility | IEnova
Debt Instrument [Line Items]
Debt instrument, maximum borrowing amount				$ 1,226,000,000
Loan Agreement To Finance Natural Gas Liquefaction Export Facility | TotalEnergies SE
Debt Instrument [Line Items]
Debt instrument, maximum borrowing amount				305,000,000
Loan Agreement To Finance The Cost Of Development And Construction Of The PA LNG Phase 1 Project | Port Arthur LNG I
Debt Instrument [Line Items]
Gross long-term debt				$ 3,200,000,000		$ 1,100,000,000
Weighted average rate				5.47%		5.33%
Loan Agreement To Finance The Cost Of Development And Construction Of The PA LNG Phase 1 Project | Port Arthur LNG I | Domestic Line of Credit
Debt Instrument [Line Items]
Maximum borrowing capacity				$ 6,800,000,000
Term of contract (in years)				7 years
Repayments of long-term debt				$ 983,000,000
Senior Secured Notes Issued Jan 2025 | Port Arthur LNG I | Senior Notes
Debt Instrument [Line Items]
Debt amount			$ 750,000,000
Stated percentage rate			6.27%
Proceeds from issuance of debt			$ 742,000,000
Underwriting discounts and debt issuance costs			$ 8,000,000
Senior Secured Notes Issued Apr 2025 | Port Arthur LNG I | Senior Notes
Debt Instrument [Line Items]
Debt amount		$ 250,000,000
Stated percentage rate		6.32%
Proceeds from issuance of debt		$ 248,000,000
Underwriting discounts and debt issuance costs		$ 2,000,000