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Equity Method Investments - Additional Information (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
	Jun. 28, 2024	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	May 16, 2024	Dec. 31, 2023
Schedule of Equity Method Investments [Line Items]
Equity method investments		$ 132		$ 132			$ 163
Other accrued liabilities		1,099		1,099			1,005
Equity Method Investee
Schedule of Equity Method Investments [Line Items]
Accounts receivable from equity method investments		61		61			$ 61
Related Party
Schedule of Equity Method Investments [Line Items]
Other accrued liabilities		$ 30		$ 30
Propeyes China \| Related Party \| Convertible Notes Payable
Schedule of Equity Method Investments [Line Items]
Debt instrument, face amount	$ 20
Debt instrument term	3 years
Carrols Restaurant Group Inc
Schedule of Equity Method Investments [Line Items]
Acquisition, remaining issued and outstanding shares percentage						85.00%
BK Brasil
Schedule of Equity Method Investments [Line Items]
Ownership percentage		9.40%		9.40%
Quoted market price		$ 17		$ 17
TH International Limited
Schedule of Equity Method Investments [Line Items]
Ownership percentage		4.20%		4.20%
Quoted market price		$ 5		$ 5
Wendy's Company TIMWEN Partnership \| Canada
Schedule of Equity Method Investments [Line Items]
Ownership percentage		50.00%		50.00%
Wendy's Company TIMWEN Partnership \| Tim Hortons brand
Schedule of Equity Method Investments [Line Items]
Cash distributions		$ 4	$ 3	$ 7	$ 6
Rent expense		$ 5	$ 6	$ 10	$ 10