Basic and Diluted Net Income Attributable to PepsiCo (Detail) - USD ($) $ / shares in Units, shares in Millions, $ in Millions		3 Months Ended		8 Months Ended
		Sep. 09, 2017	Sep. 03, 2016	Sep. 09, 2017	Sep. 03, 2016
Earnings Per Share [Abstract]
Net income attributable to PepsiCo		$ 2,144	$ 1,992	$ 5,567	$ 4,928
Preferred Stock [Abstract]
Redemption premium		(1)	(1)	(3)	(3)
Net income available for PepsiCo common shareholders - Value		$ 2,143	$ 1,991	$ 5,564	$ 4,925
Net income available for PepsiCo common shareholders - Shares	[1]	1,425	1,438	1,427	1,443
Basic net income attributable to PepsiCo per common share (in dollars per share)		$ 1.50	$ 1.38	$ 3.90	$ 3.41
Dilutive Securities [Abstract]
Dilutive Securities, Effect on Basic Earnings Per Share, Dilutive Convertible Securities		$ 0	$ 0	$ 0	$ 0
Stock options and RSUs - Shares	[1]	12	13	12	12
ESOP convertible preferred stock - Value		$ 1	$ 1	$ 3	$ 3
ESOP convertible preferred stock - Shares	[1]	1	1	1	1
Diluted shares - Shares	[1]	1,438	1,452	1,440	1,456
Diluted net income attributable to PepsiCo per common share (in dollars per share)		$ 1.49	$ 1.37	$ 3.87	$ 3.39

[1] Weighted-average common shares outstanding (in millions)