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Acquisitions and Other Transactions (Whistler Joint Venture Transaction) (Details) - USD ($) $ in Millions		12 Months Ended
	May 29, 2024	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023	May 28, 2024
Business Combination [Line Items]
Investments - redemptions, repayments, return of capital and sales proceeds		$ 293	$ 146	$ 3
WPC Parent, LLC
Business Combination [Line Items]
Gain (Loss) on Disposition of Stock in Subsidiary or Equity Method Investee	$ 151
Investments - redemptions, repayments, return of capital and sales proceeds	$ 134
WPC Parent, LLC | Enbridge Inc.
Business Combination [Line Items]
Ownership percentage	19.00%
WPC Parent, LLC | MPLX LP [Member]
Business Combination [Line Items]
Ownership percentage	30.40%
Whistler Pipeline LLC [Member] | MPLX LP [Member]
Business Combination [Line Items]
Ownership percentage					37.50%

X

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