Other Operating Expenses (Income), net (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Other Income and Expenses [Abstract]
Net losses (gains) on disposal of assets, restaurant closures, and refranchisings	$ (4)	$ 30	$ 6	$ 19
Litigation settlements (gains) and reserves, net	1	1	2	(1)
Net losses (gains) on foreign exchange	44	(18)	15	(11)
Other, net	1	(3)	8	13
Other operating expenses (income), net	$ 42	$ 10	$ 31	$ 20