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Mergers and Acquisitions (Narrative) (Details) - USD ($) shares in Millions, $ in Billions		3 Months Ended
	May 03, 2024	Sep. 30, 2025
Permian Acreage
Business acquisition [Line Items]
Payments to acquire businesses, gross		$ 2.4
Pioneer Natural Resources Merger
Business acquisition [Line Items]
Equity interests issued or issuable, number of shares (in shares)	545
Business combination, consideration transferred, equity interests issued and issuable	$ 63.0
Business combination, consideration transferred, liabilities incurred	$ 5.0

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