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Supplemental Disclosures to the Consolidated Statements of Cash Flows (Narrative) (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023
Supplemental Cash Flow Information [Abstract] |  |  |  |
Non-cash issuance of common stock |  |  | $ 328 | $ 304
Stock-based compensation expense, equity awards | $ 90 | $ 82 | $ 283 | $ 273

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