Investments, Equity Method and Joint Ventures (Tables) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2026	Mar. 31, 2025	Dec. 31, 2025
Equity Method Investment, Summarized Financial Information [Abstract]
Income (Loss) from Equity Method Investments	$ 52	$ 51
Equity Method Investment, Difference Between Carrying Amount and Underlying Equity	1,400
Equity Method Investee
Equity Method Investment, Summarized Financial Information [Abstract]
Proceeds from Dividends Received	17	15
Accounts Receivable from Related Parties	90	114
Related Party Transaction, Revenue from Related Party	145	$ 139
McDonald's Japan Holdings Co., Ltd
Schedule of Equity Method Investments [Line Items]
Equity Method Investments	655		$ 657
Equity Method Investment, Quoted Market Value	$ 2,444		$ 1,915
Equity Method Investment, Ownership Percentage	35.00%		35.00%
Grand Foods Holding
Schedule of Equity Method Investments [Line Items]
Equity Method Investments	$ 2,095		$ 2,048
Equity Method Investment, Ownership Percentage	48.00%		48.00%

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