CONDENSED CONSOLIDATED STATEMENT OF INCOME - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 21, 2020	Mar. 23, 2019
Income Statement [Abstract]
Net Revenue	$ 13,881	$ 12,884
Cost of sales	6,127	5,688
Gross profit	7,754	7,196
Selling, general and administrative expenses	5,830	5,188
Operating Profit	1,924	2,008
Other pension and retiree medical benefits income	77	64
Net interest expense and other	(290)	(204)
Income before income taxes	1,711	1,868
Provision for income taxes	360	446
Net income	1,351	1,422
Less: Net income attributable to noncontrolling interests	13	9
Net Income Attributable to PepsiCo	$ 1,338	$ 1,413
Earnings Per Share [Abstract]
Earnings Per Share, Basic	$ 0.96	$ 1.01
Earnings Per Share, Diluted	$ 0.96	$ 1.00
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Weighted Average Number of Shares Outstanding, Basic	1,390	1,406
Weighted Average Number of Shares Outstanding, Diluted	1,396	1,413