Basis of Presentation and Our Divisions - Other Segment Information (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 21, 2026	Mar. 22, 2025
Segment Reporting Information [Line Items]
Payments to Acquire Productive Assets	$ 447	$ 603
Depreciation, Depletion and Amortization, Nonproduction	742	684
Operating Segments
Segment Reporting Information [Line Items]
Payments to Acquire Productive Assets	425	579
Depreciation, Depletion and Amortization, Nonproduction	706	648
Operating Segments \| PepsiCo Foods North America [Member]
Segment Reporting Information [Line Items]
Payments to Acquire Productive Assets	110	195
Depreciation, Depletion and Amortization, Nonproduction	227	210
Operating Segments \| PepsiCo Beverages North America [Member]
Segment Reporting Information [Line Items]
Payments to Acquire Productive Assets	183	248
Depreciation, Depletion and Amortization, Nonproduction	252	253
Operating Segments \| International Beverage Franchise
Segment Reporting Information [Line Items]
Payments to Acquire Productive Assets	9	16
Depreciation, Depletion and Amortization, Nonproduction	18	19
Operating Segments \| Europe, Middle East & Africa (Segment) [Member]
Segment Reporting Information [Line Items]
Payments to Acquire Productive Assets	66	50
Depreciation, Depletion and Amortization, Nonproduction	101	81
Operating Segments \| Latin America Foods (Segment) [Member]
Segment Reporting Information [Line Items]
Payments to Acquire Productive Assets	41	46
Depreciation, Depletion and Amortization, Nonproduction	80	62
Operating Segments \| Asia Pacific Foods (Segment) [Member]
Segment Reporting Information [Line Items]
Payments to Acquire Productive Assets	16	24
Depreciation, Depletion and Amortization, Nonproduction	28	23
Segment Reporting, Reconciling Item, Corporate Nonsegment [Member]
Segment Reporting Information [Line Items]
Payments to Acquire Productive Assets	22	24
Depreciation, Depletion and Amortization, Nonproduction	$ 36	$ 36