Fair Value Measurements (Financial Instruments) (Details) - Senior notes - Level 1 - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt instrument	$ 8,821	$ 7,720
Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt instrument	$ 8,518	$ 7,442

Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.

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+ Details