Debt (Fair Value) (Narrative) (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Senior Notes
Debt Instrument [Line Items]
Fair value of long-term debt	$ 15,090	$ 15,250

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details