Accumulated Other Comprehensive Loss Attributable to PepsiCo - Schedule of Accumulated Other Comprehensive Loss (Detail) - USD ($) $ in Millions	3 Months Ended				6 Months Ended
	Jun. 17, 2023	Mar. 25, 2023	Jun. 11, 2022	Mar. 19, 2022	Jun. 17, 2023	Jun. 11, 2022	Dec. 31, 2022	Dec. 25, 2021
Statement of Other Comprehensive Income [Abstract]
Beginning balance	$ (13,183)	$ (12,948)	$ (12,869)	$ (12,309)	$ (12,948)	$ (12,309)
Other comprehensive (loss)/income before reclassifications (b)	(215)	(350)	1,298	(549)
Amounts reclassified from accumulated other comprehensive loss	0	108	0	0	108	0
Net other comprehensive (loss)/income	(215)	(242)	1,298	(549)
Tax amounts	17	7	(24)	(11)
Ending balance	(13,381)	(13,183)	(11,595)	(12,869)	(13,381)	(11,595)
Beginning balance	(58)	1	265	159	1	159
Other comprehensive (loss)/income before reclassifications (b)	19	(92)	(107)	200
Amounts reclassified from accumulated other comprehensive loss	12	13	(30)	(62)	25	(92)
Net other comprehensive (loss)/income	31	(79)	(137)	138
Tax amounts	(7)	20	35	(32)
Ending balance	(34)	(58)	163	265	(34)	163
Beginning balance	2,365	2,361	2,737	2,750	2,361	2,750
Other comprehensive income/(loss) before reclassifications (c)	(14)	(9)	(484)	(8)
Amounts reclassified from accumulated other comprehensive loss	5	5	161	25	10	186
Net other comprehensive income/(loss)	(9)	(4)	(323)	17
Tax amounts	3	0	73	(4)
Ending balance	2,371	2,365	2,987	2,737	2,371	2,987
Beginning balance	5	6	(2)	2	6	2
Other comprehensive (loss)/income before reclassifications (d)	1	(1)	5	0
Amounts reclassified from accumulated other comprehensive loss	0	0	0	0
Net other comprehensive (loss)/income	1	(1)	5	0
Tax amounts	0	0	0	(4)
Ending balance	6	5	3	(2)	6	3
OCI, before Reclassifications, before Tax, Attributable to Parent	(209)	(452)	712	(357)
Reclassification from AOCI, Current Period, before Tax, Attributable to Parent	17	126	131	(37)
Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent	(192)	(326)	843	(394)
Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent	13	27	84	(51)
Accumulated Other Comprehensive Income (Loss), Net of Tax	(15,780)	(15,601)	(14,416)	(15,343)	$ (15,780)	(14,416)	$ (15,302)	$ (14,898)
Derivative Instrument, Gain (Loss) Reclassified from AOCI into Income, Effective Portion, Statement of Income or Comprehensive Income [Extensible Enumeration]					Selling, general and administrative expenses
Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Post retirement Plans Taxes	$ 1,187	$ 1,184	$ 1,352	$ 1,279	$ 1,187	$ 1,352	$ 1,184	$ 1,283