Cover Page - shares	9 Months Ended
	Sep. 30, 2023	Oct. 28, 2023
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2023
Document Transition Report	false
Entity File Number	001-37482
Entity Registrant Name	Kraft Heinz Co
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	46-2078182
Entity Address, Address Line One	One PPG Place,
Entity Address, City or Town	Pittsburgh,
Entity Address, State or Province	PA
Entity Address, Postal Zip Code	15222
City Area Code	412
Local Phone Number	456-5700
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		1,226,538,694
Amendment Flag	false
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	Q3
Entity Central Index Key	0001637459
Current Fiscal Year End Date	--12-30
Common Stock
Cover [Abstract]
Title of 12(b) Security	Common stock, $0.01 par value
Trading Symbol	KHC
Security Exchange Name	NASDAQ
Document Information [Line Items]
Title of 12(b) Security	Common stock, $0.01 par value
Trading Symbol	KHC
Security Exchange Name	NASDAQ
Floating Rate Senior Notes due 2025
Cover [Abstract]
Title of 12(b) Security	Floating Rate Senior Notes due 2025
Trading Symbol	KHC25
Security Exchange Name	NASDAQ
Document Information [Line Items]
Title of 12(b) Security	Floating Rate Senior Notes due 2025
Trading Symbol	KHC25
Security Exchange Name	NASDAQ