CONDENSED CONSOLIDATED STATEMENT OF EQUITY - USD ($) shares in Millions, $ in Millions	Total	Common Stock	Capital in Excess of Par Value	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Repurchased Common Stock	Total Common Shareholder's Equity	Noncontrolling Interests
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stockholders' Equity Attributable to Parent		$ 23	$ 3,953	$ 59,947	$ (15,119)	$ (34,286)
Cumulative Effect of Accounting Changes in Period of Adoption				8
Stockholders' Equity Attributable to Noncontrolling Interest								$ 84
Acquisitions And Divestitures To Noncontrolling Interest								0
Common Stock, Dividends, Per Share, Declared	$ 1.8825
Balance, beginning of year, shares at Dec. 29, 2018		1,409
Balance, end of year, shares at Jun. 15, 2019		1,399
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation expense			119
Stock option exercises, RSUs and PSUs converted			(176)			$ 401
Share-based Payment Arrangement, Decrease for Tax Withholding Obligation			(100)
Shares issued, beginning of year at Dec. 29, 2018						(458)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock Repurchased During Period, Shares		(10)				(15)
Treasury Stock, Value, Acquired, Cost Method		$ 0
Stock Repurchased During Period, Value						$ (1,750)
Stock option exercises, shares						5
Other								(1)
Net income attributable to PepsiCo	$ 3,448			3,448
Cash dividends declared - common				(2,651)
Shares issued, end of period at Jun. 15, 2019						(468)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Less: Net income attributable to noncontrolling interests	$ 17							17
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent					135
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders								(15)
Stockholders' Equity Attributable to Parent		$ 23	3,753	60,060	(14,656)	$ (34,978)
Stockholders' Equity Attributable to Noncontrolling Interest								94
Acquisitions And Divestitures To Noncontrolling Interest								0
Common Stock, Dividends, Per Share, Declared	$ 0.955
Balance, beginning of year, shares at Mar. 23, 2019		1,404
Balance, end of year, shares at Jun. 15, 2019		1,399
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation expense			62
Stock option exercises, RSUs and PSUs converted			(12)			$ 122
Share-based Payment Arrangement, Decrease for Tax Withholding Obligation			(7)
Shares issued, beginning of year at Mar. 23, 2019						(463)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock Repurchased During Period, Shares		(5)				(6)
Treasury Stock, Value, Acquired, Cost Method		$ 0
Stock Repurchased During Period, Value						$ (779)
Stock option exercises, shares						1
Other								(2)
Net income attributable to PepsiCo	$ 2,035			2,035
Cash dividends declared - common				(1,343)
Shares issued, end of period at Jun. 15, 2019						(468)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Less: Net income attributable to noncontrolling interests	8							8
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent					(328)
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders								(15)
Stockholders' Equity Attributable to Parent		23	3,796	60,752	(14,984)	$ (35,635)	$ 13,952
Cumulative Effect of Accounting Changes in Period of Adoption				0
Stockholders' Equity Attributable to Noncontrolling Interest								85
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	14,037
Stockholders' Equity Attributable to Parent	14,786	$ 23	3,886	61,946	(14,300)	(36,769)
Cumulative Effect of Accounting Changes in Period of Adoption				(34)
Stockholders' Equity Attributable to Noncontrolling Interest	82							82
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	$ 14,868
Acquisitions And Divestitures To Noncontrolling Interest								6
Common Stock, Dividends, Per Share, Declared	$ 1.9775
Balance, beginning of year, shares at Dec. 28, 2019		1,391
Balance, end of year, shares at Jun. 13, 2020		1,385
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation expense			101
Stock option exercises, RSUs and PSUs converted			(136)			$ 257
Share-based Payment Arrangement, Decrease for Tax Withholding Obligation			(79)
Shares issued, beginning of year at Dec. 28, 2019						(476)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock Repurchased During Period, Shares		(6)				(9)
Treasury Stock, Value, Acquired, Cost Method		$ 0
Stock Repurchased During Period, Value						$ (1,159)
Stock option exercises, shares						3
Other								(2)
Net income attributable to PepsiCo	$ 2,984			2,984
Cash dividends declared - common				(2,751)
Shares issued, end of period at Jun. 13, 2020						(482)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Less: Net income attributable to noncontrolling interests	$ 25							25
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent					(1,478)
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders								(15)
Stockholders' Equity Attributable to Parent		$ 23	3,741	61,920	(15,057)	$ (37,162)
Stockholders' Equity Attributable to Noncontrolling Interest								94
Acquisitions And Divestitures To Noncontrolling Interest								6
Common Stock, Dividends, Per Share, Declared	$ 1.0225
Balance, beginning of year, shares at Mar. 21, 2020		1,389
Balance, end of year, shares at Jun. 13, 2020		1,385
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation expense			39
Stock option exercises, RSUs and PSUs converted			(5)			$ 48
Share-based Payment Arrangement, Decrease for Tax Withholding Obligation			(3)
Shares issued, beginning of year at Mar. 21, 2020						(478)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock Repurchased During Period, Shares		(4)				(5)
Treasury Stock, Value, Acquired, Cost Method		$ 0
Stock Repurchased During Period, Value						$ (557)
Stock option exercises, shares						1
Other								(1)
Net income attributable to PepsiCo	$ 1,646			1,646
Cash dividends declared - common				(1,421)
Shares issued, end of period at Jun. 13, 2020						(482)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Less: Net income attributable to noncontrolling interests	12							12
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent					(721)
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders								(15)
Stockholders' Equity Attributable to Parent	12,491	$ 23	$ 3,772	62,145	$ (15,778)	$ (37,671)	$ 12,491
Cumulative Effect of Accounting Changes in Period of Adoption				$ 0
Stockholders' Equity Attributable to Noncontrolling Interest	96							$ 96
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	$ 12,587