Basic and Diluted Net Income Attributable to PepsiCo (Detail) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 23, 2013		Mar. 24, 2012
Earnings Per Share [Abstract]
Net income attributable to PepsiCo	$ 1,075		$ 1,127
Dividends
Redemption premium	(2)		(1)
Net income available for PepsiCo common shareholders - Value	1,073		1,126
Net income available for PepsiCo common shareholders - Shares	1,544	[1]	1,568	[1]
Basic net income attributable to PepsiCo per common share (in dollars per share)	$ 0.69		$ 0.72
Stock options and RSUs - Shares	18	[1],[2]	15	[1],[2]
ESOP convertible preferred stock - Value	2		1
ESOP convertible preferred stock - Shares	1	[1]	1	[1]
Diluted shares - Value	$ 1,075		$ 1,127
Diluted shares - Shares	1,563	[1]	1,584	[1]
Diluted net income attributable to PepsiCo per common share (in dollars per share)	$ 0.69		$ 0.71

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

[2] Options to purchase 2.6 million shares in 2013 and 29.6 million shares 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 $75.69 in 2013 and $66.93 in 2012.