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Acquisitions and Other Transactions (Utica Midstream Acquisition) (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
	Mar. 22, 2024	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Business Combination [Line Items]
Gain on equity method investments		$ 484	$ 0	$ 484	$ 20
Utica Midstream
Business Combination [Line Items]
Payments to Acquire Businesses, Gross	$ 625
Business Combination, Voting Equity Interest Acquired, Percentage	100.00%
Total identifiable net assets	$ 625
Other noncurrent assets	$ 507
Ohio Gathering Company L.L.C.
Business Combination [Line Items]
Business Combination, Achieved in Stages, Preacquisition and Acquired Equity Interests in Acquiree, Percentage	73.00%
Difference between carrying amount and underlying equity	$ 75
Ohio Condensate Company, L.L.C.
Business Combination [Line Items]
Business Combination, Achieved in Stages, Preacquisition and Acquired Equity Interests in Acquiree, Percentage	100.00%
Business Combination, Achieved in Stages, Preacquisition Equity Interest in Acquiree, Percentage	62.00%
Gain on equity method investments	$ 20