Fair Value Measurements, Financial Instruments (Details) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
Financial liabilities:
Debt (excluding finance lease obligations), at carrying amount	$ 8,355	$ 9,218
Level 2 [Member]
Financial liabilities:
Debt (excluding finance lease obligations), at fair value	$ 8,372	$ 9,109

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

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+ Details