CONDENSED CONSOLIDATED STATEMENT OF EQUITY - USD ($) shares in Millions, $ in Millions	Total	Preferred Stock	Preferred Stock Redeemable Preferred Stock [Member]	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
Preferred Stock, Shares Issued		0.8	(0.7)
Preferred Stock, Value, Issued		$ 41	$ (197)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stockholders' Equity Attributable to Parent				$ 24	$ 3,996	$ 52,839	$ (13,057)	$ (32,757)
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets						(145)
Stockholders' Equity Attributable to Noncontrolling Interest										$ 92
Common Stock, Dividends, Per Share, Declared	$ 1.7325
Conversion of Stock, Shares Converted		(0.1)
Retirement of preferred stock		(0.7)	(0.7)
Convertible Preferred Stock Converted to Other Securities		$ (6)		$ 0	6
Retirement of preferred stock, value		$ (35)	$ (199)			(164)
Redemptions, shares			0.0
Redemptions			$ (2)
Balance, beginning of year, shares at Dec. 30, 2017				1,420.0
Balance, end of year, shares at Jun. 16, 2018				1,415.0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation expense					148
Stock option exercises, RSUs, PSUs and PEPunits converted					(150)			$ (289)
Share-based Payment Arrangement, Decrease for Tax Withholding Obligation					(82)
Other					(3)
Shares issued, beginning of year at Dec. 30, 2017								(446.0)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock Repurchased During Period, Shares				(6.0)				(10.0)
Treasury Stock, Value, Acquired, Cost Method				$ 0
Stock Repurchased During Period, Value								$ (1,004)
Stock option exercises, shares								4.0
Other (in shares)								0.0
Other								$ 1		(2)
Net income attributable to PepsiCo	$ 3,163					3,163
Cash dividends declared - common						(2,470)
Shares issued, end of period at Jun. 16, 2018								(452.0)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Less: Net income attributable to noncontrolling interests	$ 20									20
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent							(523)
Stock Issued During Period, Shares, Conversion of Convertible Securities				1.0
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders										0
Preferred Stock, Shares Issued		0.0	0.0
Preferred Stock, Value, Issued		$ 0	$ 0
Stockholders' Equity Attributable to Parent				$ 24	3,866	52,726	(12,717)	$ (33,016)
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets						0
Stockholders' Equity Attributable to Noncontrolling Interest										102
Common Stock, Dividends, Per Share, Declared	$ 0.9275
Conversion of Stock, Shares Converted		0.0
Retirement of preferred stock		0.0	0.0
Convertible Preferred Stock Converted to Other Securities		$ 0		$ 0	0
Retirement of preferred stock, value		$ 0	$ 0			0
Redemptions, shares			0.0
Redemptions			$ 0
Balance, beginning of year, shares at Mar. 24, 2018				1,419.0
Balance, end of year, shares at Jun. 16, 2018				1,415.0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation expense					65
Stock option exercises, RSUs, PSUs and PEPunits converted					(8)			$ (28)
Share-based Payment Arrangement, Decrease for Tax Withholding Obligation					(6)
Other					(2)
Shares issued, beginning of year at Mar. 24, 2018								(448.0)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock Repurchased During Period, Shares				(4.0)				(5.0)
Treasury Stock, Value, Acquired, Cost Method				$ 0
Stock Repurchased During Period, Value								$ (483)
Stock option exercises, shares								1.0
Other (in shares)								0.0
Other								$ 0		(2)
Net income attributable to PepsiCo	$ 1,820					1,820
Cash dividends declared - common						(1,323)
Shares issued, end of period at Jun. 16, 2018								(452.0)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Less: Net income attributable to noncontrolling interests	10									10
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent							(863)
Stock Issued During Period, Shares, Conversion of Convertible Securities				0.0
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders										0
Preferred Stock, Shares Issued		0.0	0.0
Preferred Stock, Value, Issued		$ 0	$ 0
Stockholders' Equity Attributable to Parent				$ 24	3,915	53,223	(13,580)	$ (33,471)	$ 10,111
Stockholders' Equity Attributable to Noncontrolling Interest										110
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	10,221
Preferred Stock, Shares Issued		0.0	0.0
Preferred Stock, Value, Issued		$ 0	$ 0
Stockholders' Equity Attributable to Parent	14,518			23	3,953	59,947	(15,119)	(34,286)
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets						8
Stockholders' Equity Attributable to Noncontrolling Interest	84									84
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	$ 14,602
Common Stock, Dividends, Per Share, Declared	$ 1.8825
Conversion of Stock, Shares Converted		0.0
Retirement of preferred stock		0.0	0.0
Convertible Preferred Stock Converted to Other Securities		$ 0		$ 0	0
Retirement of preferred stock, value		$ 0	$ 0			0
Redemptions, shares			0.0
Redemptions			$ 0
Balance, beginning of year, shares at Dec. 29, 2018				1,409.0
Balance, end of year, shares at Jun. 15, 2019				1,399.0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation expense					119
Stock option exercises, RSUs, PSUs and PEPunits converted					(176)			$ (401)
Share-based Payment Arrangement, Decrease for Tax Withholding Obligation					(100)
Other					0
Shares issued, beginning of year at Dec. 29, 2018								(458.0)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock Repurchased During Period, Shares				(10.0)				(15.0)
Treasury Stock, Value, Acquired, Cost Method				$ 0
Stock Repurchased During Period, Value								$ (1,750)
Stock option exercises, shares								5.0
Other (in shares)								0.0
Other								$ 0		(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								(468.0)
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
Stock Issued During Period, Shares, Conversion of Convertible Securities				0.0
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders										(15)
Preferred Stock, Shares Issued		0.0	0.0
Preferred Stock, Value, Issued		$ 0	$ 0
Stockholders' Equity Attributable to Parent				$ 23	3,753	60,060	(14,656)	$ (34,978)
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets						0
Stockholders' Equity Attributable to Noncontrolling Interest										94
Common Stock, Dividends, Per Share, Declared	$ 0.955
Conversion of Stock, Shares Converted		0.0
Retirement of preferred stock		0.0	0.0
Convertible Preferred Stock Converted to Other Securities		$ 0		$ 0	0
Retirement of preferred stock, value		$ 0	$ 0			0
Redemptions, shares			0.0
Redemptions			$ 0
Balance, beginning of year, shares at Mar. 23, 2019				1,404.0
Balance, end of year, shares at Jun. 15, 2019				1,399.0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation expense					62
Stock option exercises, RSUs, PSUs and PEPunits converted					(12)			$ (122)
Share-based Payment Arrangement, Decrease for Tax Withholding Obligation					(7)
Other					0
Shares issued, beginning of year at Mar. 23, 2019								(463.0)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock Repurchased During Period, Shares				(5.0)				(6.0)
Treasury Stock, Value, Acquired, Cost Method				$ 0
Stock Repurchased During Period, Value								$ (779)
Stock option exercises, shares								1.0
Other (in shares)								0.0
Other								$ 0		(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								(468.0)
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)
Stock Issued During Period, Shares, Conversion of Convertible Securities				0.0
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders										(15)
Preferred Stock, Shares Issued		0.0	0.0
Preferred Stock, Value, Issued		$ 0	$ 0
Stockholders' Equity Attributable to Parent	13,952			$ 23	$ 3,796	$ 60,752	$ (14,984)	$ (35,635)	$ 13,952
Stockholders' Equity Attributable to Noncontrolling Interest	85									$ 85
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	$ 14,037