CONDENSED CONSOLIDATED STATEMENT OF EQUITY - USD ($) shares in Millions, $ in Millions	Total	Preferred Stock	Common Stock	Parent [Member]	Capital in Excess of Par Value	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Repurchased Common Stock	Noncontrolling Interests	Redeemable Preferred Stock [Member] Preferred Stock
Preferred Stock, Shares Issued										(0.7)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stockholders' Equity Attributable to Parent			$ 24		$ 4,076	$ 50,472	$ (13,319)	$ (29,185)		$ (186)
Stockholders' Equity Attributable to Noncontrolling Interest									$ 107
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent							(250)
Shares issued, beginning of year at Dec. 26, 2015								(418.0)
Shares issued, end of period at Mar. 19, 2016								(420.0)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Redemptions, shares										0.0
Redemptions										$ (1)
Balance, beginning of year, shares at Dec. 26, 2015			1,448.0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock Repurchased During Period, Shares			(2.0)					(7.0)
Stock Repurchased During Period, Value								$ (664)
Stock option exercises, shares								5.0
Stock option exercises, RSUs, PSUs and PEPunits converted								$ 360
Adjustments Related to Tax Withholding for Share-based Compensation					(99)
Other (in shares)								0.0
Other								$ 2	(1)
Share-based compensation expense					70
Stock Options Exercises RSUs PSUS Pepunits Converted					(139)
Other					(2)
Net income attributable to PepsiCo	$ 931					931
Cash dividends declared - common						(1,020)
Net income attributable to noncontrolling interests	14								14
Balance, end of year, shares at Mar. 19, 2016			1,446.0
Balance, end of period at Mar. 19, 2016	11,231
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock option exercises/RSUs converted, tax benefits	53
Preferred Stock, Shares Issued		0.8								(0.7)
Preferred Stock, Value, Issued		$ 41
Stockholders' Equity Attributable to Parent			$ 24	$ 11,257	3,906	50,383	(13,569)	(29,487)		$ (187)
Stockholders' Equity Attributable to Noncontrolling Interest									120
Preferred Stock, Shares Issued										(0.7)
Preferred Stock, Value, Issued	41
Stockholders' Equity Attributable to Parent	(11,246)		$ 24		4,091	52,518	(13,919)	$ (31,468)		$ (192)
Stockholders' Equity Attributable to Noncontrolling Interest	104								104
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent							503
Shares issued, beginning of year at Dec. 31, 2016								(438.0)
Shares issued, end of period at Mar. 25, 2017								(436.0)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Redemptions, shares										0.0
Redemptions										$ (2)
Balance, beginning of year, shares at Dec. 31, 2016			1,428.0
Balance, beginning of year at Dec. 31, 2016	11,199
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock Repurchased During Period, Shares			2.0					(4.0)
Stock Repurchased During Period, Value								$ (477)
Stock option exercises, shares								6.0
Stock option exercises, RSUs, PSUs and PEPunits converted								$ 446
Adjustments Related to Tax Withholding for Share-based Compensation					(116)
Other (in shares)								0.0
Share-based compensation expense					73
Stock Options Exercises RSUs PSUS Pepunits Converted					(191)
Net income attributable to PepsiCo	1,318					1,318
Cash dividends declared - common						(1,080)
Net income attributable to noncontrolling interests	11								11
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax									(1)
Balance, end of year, shares at Mar. 25, 2017			1,430.0
Balance, end of period at Mar. 25, 2017	11,683
Preferred Stock, Shares Issued		0.8								(0.7)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Preferred Stock, Value, Issued	41	$ 41
Stockholders' Equity Attributable to Parent	(11,722)		$ 24	$ 11,722	$ 3,857	$ 52,756	$ (13,416)	$ (31,499)		$ (194)
Stockholders' Equity Attributable to Noncontrolling Interest	$ 114								$ 114