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Variable Interest Entity (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Apr. 08, 2025	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Variable Interest Entity [Line Items]
Cash and cash equivalents (amount related to variable interest entity (VIE)—2025: $130)	$ 1,982		$ 1,614	$ 2,032	$ 2,323
Other current assets (amount related to VIE—2025: $1)	27		43
Property, Plant and Equipment, Net	6,715		6,735	$ 7,141
Other assets (amount related to VIE—2025: $1)	980		917
Assets	14,088		13,466
Accounts payable and accrued expenses (amount related to VIE—2025: $52)	681		603
Other liabilities (amount related to VIE—2025: $1)	337		$ 301
Blue Point Number One, LLC | JERA Co, Inc.
Variable Interest Entity [Line Items]
Percentage of ownership interest held by outside investors		35.00%
Joint Venture Agreement, Covenant, Subsidiary, Ability To Reduce Ownership Percentage, Minimum Ownership Percentage, Noncontrolling Owner		20.00%
Variable Interest Entity, Consideration Transferred	170
Blue Point Number One, LLC | Mitsui & Co., Ltd
Variable Interest Entity [Line Items]
Percentage of ownership interest held by outside investors		25.00%
Variable Interest Entity, Consideration Transferred	121
Blue Point Number One, LLC | JERA Co, Inc. and Mitsui & Co., Ltd.
Variable Interest Entity [Line Items]
Percentage of ownership interest held by outside investors		60.00%
Blue Point Number One, LLC
Variable Interest Entity [Line Items]
Ownership interest (as a percent)		40.00%
Payments to Acquire Interest in Subsidiaries and Affiliates	152
Variable Interest Entity, Consideration Transferred	195
Variable Interest Entity, Consideration Transferred, Contribution Of Intellectual Property, Amount	43
Variable Interest Entity, Primary Beneficiary
Variable Interest Entity [Line Items]
Cash and cash equivalents (amount related to variable interest entity (VIE)—2025: $130)	130
Other current assets (amount related to VIE—2025: $1)	1
Property, Plant and Equipment, Net	361
Other assets (amount related to VIE—2025: $1)	1
Assets	493
Accounts payable and accrued expenses (amount related to VIE—2025: $52)	52
Other liabilities (amount related to VIE—2025: $1)	1
Liabilities	$ 53

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