Net Income Attributable to PepsiCo per Common Share - Basic And Diluted Net Income Per Common Share (Detail) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 15, 2024	Jun. 17, 2023	Jun. 15, 2024	Jun. 17, 2023
Earnings Per Share [Abstract]
Earnings Per Share, Basic (in USD per share)	$ 2.24	$ 1.99	$ 3.73	$ 3.40
Net Income (Loss) Available to Common Stockholders, Basic	$ 3,083	$ 2,748	$ 5,125	$ 4,680
Weighted Average Number of Shares Outstanding, Basic (in shares)	1,375	1,378	1,375	1,378
Dilutive Securities [Abstract]
Dilutive Securities, Effect on Basic Earnings Per Share, Options and Restrictive Stock Units	$ 0	$ 0	$ 0	$ 0
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements	4	6	5	6
Net Income (Loss) Available to Common Stockholders, Diluted	$ 3,083	$ 2,748	$ 5,125	$ 4,680
Weighted Average Number of Shares Outstanding, Diluted	1,379	1,384	1,380	1,384
Earnings Per Share, Diluted (in USD per share)	$ 2.23	$ 1.99	$ 3.71	$ 3.38
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	4		4