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Investments - Summary of Components of Investment (Details) - USD ($) $ in Millions	Sep. 30, 2025	Dec. 31, 2024
Schedule of Investments [Line Items]
Investments	$ 679	$ 727
WaterBridge OpCo [Member]
Schedule of Investments [Line Items]
% Interest	14.00%
WaterBridge [Member]
Schedule of Investments [Line Items]
% Interest	14.00%
Investments	$ 271	216
Catalyst [Member]
Schedule of Investments [Line Items]
% Interest	50.00%
Investments	$ 254	273
Water JV [Member]
Schedule of Investments [Line Items]
% Interest	30.00%
Fervo [Member]
Schedule of Investments [Line Items]
% Interest	17.00%
Investments	$ 104	115
Matterhorn [Member]
Schedule of Investments [Line Items]
% Interest	0.00%
Investments	$ 0	69
Other [Member]
Schedule of Investments [Line Items]
Investments	$ 50	$ 54

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Percentage Of Interest In Investments

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