Basic and Diluted Net Income Attributable to PepsiCo (Detail) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 08, 2012		Sep. 03, 2011		Sep. 08, 2012		Sep. 03, 2011
Earnings Per Share [Abstract]
Net income attributable to PepsiCo	$ 1,902		$ 2,000		$ 4,517		$ 5,028
Dividends					(1)		(1)
Redemption premium	(1)		(1)		(4)		(4)
Net income available for PepsiCo common shareholders - Value	1,901		1,999		4,512		5,023
Net income available for PepsiCo common shareholders - Shares	1,556	[1]	1,578	[1]	1,562	[1]	1,581	[1]
Basic net income attributable to PepsiCo per common share (in dollars per share)	$ 1.22		$ 1.27		$ 2.89		$ 3.18
Stock options and RSUs - Shares	18	[1],[2]	20	[1],[2]	17	[1],[2]	21	[1],[2]
ESOP convertible preferred stock - Value	1		1		5		5
ESOP convertible preferred stock - Shares	1	[1]	1	[1]	1	[1]	1	[1]
Diluted shares - Value	$ 1,902		$ 2,000		$ 4,517		$ 5,028
Diluted shares - Shares	1,575	[1]	1,599	[1]	1,580	[1]	1,603	[1]
Diluted net income attributable to PepsiCo per common share (in dollars per share)	$ 1.21		$ 1.25		$ 2.86		$ 3.14

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

[2] Options to purchase 0.6 million and 13.5 million shares, respectively, for the 12 and 36 weeks in 2012 were not included in the calculation of earnings per share because these options were out-of-the-money. These out-of-the-money options had average exercise prices of $72.26 and $67.51, respectively. Options to purchase 22.1 million and 21.2 million shares, respectively, for the 12 and 36 weeks in 2011 were not included in the calculation of earnings per share because these options were out-of-the-money. These out-of-the-money options had average exercise prices of $67.67 and $67.46, respectively.