Goodwill and Intangible Assets (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2023	Jun. 30, 2024
Goodwill [Line Items]
Goodwill, gross		$ 2,323	$ 2,279
Accumulated impairment losses	[1]	(391)	(391)
Goodwill, net		1,932	1,888
Effect of currency translation adjustments		(44)
KFC [Member]
Goodwill [Line Items]
Goodwill, gross		1,840	1,798
Goodwill, net		1,840	1,798
Effect of currency translation adjustments		(42)
Pizza Hut [Member]
Goodwill [Line Items]
Goodwill, gross		18	18
Goodwill, net		18	18
All Other Segments [Member]
Goodwill [Line Items]
Goodwill, gross		465	463
Accumulated impairment losses	[1]	(391)	(391)
Goodwill, net		74	$ 72
Effect of currency translation adjustments		$ (2)

[1] Accumulated impairment losses represent goodwill impairment attributable to the reporting units of Little Sheep and Daojia.