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Investments - Pre-tax Gains and Losses for Marketable Securities (Details) - KDP - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2023
Jun. 30, 2023
Schedule of Investments [Line Items]    
Loss/(gain) on marketable securities sold during the period $ 104 $ (293)
Unrealized loss/(gain) on equity securities held as of the end of the period 90 (300)
Dividend income (5) (14)
Total loss/(gain) on marketable securities $ 189 $ (607)