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Partnerships and Joint Ventures - Narrative (Details) - USD ($) $ in Millions	1 Months Ended	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Variable interest entity information
Gain on the fair value of the forward sale contract of NuScale shares		$ 605	$ 0	$ 0
Variable Interest Entity, Not Primary Beneficiary
Variable interest entity information
Net assets	$ 425	425	2,400
Variable Interest Entity, Not Primary Beneficiary \| Future funding commitment
Variable interest entity information
Future funding commitments	48	48
NuScale \| Discontinued Operations, Disposed of by Sale \| Zhuhai Fabrication Yard \| Offshore Oil Engineering Co., Ltd
Variable interest entity information
Gain on the fair value of the forward sale contract of NuScale shares	122
Accrued Liabilities \| Related Party
Variable interest entity information
Investments loss position in other accrued liabilities	47	47	292
Accounts and notes receivable, net \| Related Party \| Variable Interest Entity, Not Primary Beneficiary
Variable interest entity information
Accounts and notes receivable, net	$ 219	$ 219	$ 175