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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