Supplemental Financial Information - Other Accrued Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Disclosure Text Block Supplement [Abstract]
Accrued rebates payable to government agencies	$ 621	$ 650
Accrued other rebates	1,098	1,091
All other	3,424	3,681
Total	5,143	5,422
Accrued wholesaler chargeback rebates	$ 262	$ 232