Basic and Diluted Net Income Attributable to PepsiCo (Detail) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended				6 Months Ended
	Jun. 11, 2016		Jun. 13, 2015		Jun. 11, 2016	Jun. 13, 2015
Earnings Per Share [Abstract]
Net income attributable to PepsiCo	$ 2,005		$ 1,980		$ 2,936	$ 3,201
Preferred Stock Dividends and Other Adjustments					0	0
Preferred Stock [Abstract]
Redemption premium	(1)		(1)		(2)	(2)
Net income available for PepsiCo common shareholders - Value	$ 2,004		$ 1,979		$ 2,934	$ 3,199
Net income available for PepsiCo common shareholders - Shares	1,443.0	[1]	1,476.0	[1]	1,445.0	1,480.0
Basic net income attributable to PepsiCo per common share (in dollars per share)	$ 1.39		$ 1.34		$ 2.03	$ 2.16
Dilutive Securities [Abstract]
Dilutive Securities, Effect on Basic Earnings Per Share, Dilutive Convertible Securities	$ 0		$ 0		$ 0	$ 0
Stock options and RSUs - Shares	12.0	[1],[2]	14.0	[1],[2]	12.0	16.0
ESOP convertible preferred stock - Value	$ 1		$ 1		$ 2	$ 2
ESOP convertible preferred stock - Shares	1.0	[1]	1.0	[1]	1.0	1.0
Diluted shares - Value	$ 2,005		$ 1,980		$ 2,936	$ 3,201
Diluted shares - Shares	1,456.0	[1]	1,491.0	[1]	1,458.0	1,497.0
Diluted net income attributable to PepsiCo per common share (in dollars per share)	$ 1.38		$ 1.33		$ 2.01	$ 2.14
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount			1.6		1.4	1.6
Out-of-the-money options average exercise price			$ 99.25		$ 98.99	$ 99.25

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

[2] For the 12 weeks ended June 11, 2016, the calculation of diluted earnings per common share was unadjusted because there were no out-of-the-money options during the period. For the 24 weeks ended June 11, 2016, options to purchase 1.4 million shares were not included in the calculation of diluted earnings per common share because these options were out-of-the-money. These out-of-the-money options had an average exercise price of $98.99. For the 12 and 24 weeks ended June 13, 2015, options to purchase 1.6 million shares were not included in the calculation of diluted earnings per common share because these options were out-of-the-money. These out-of-the-money options had an average exercise price of $99.25.