Revenue Recognition - Disaggregation of Total Revenues (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Property revenues	$ 221	$ 214	$ 637	$ 611
Total revenues	1,837	1,726	5,202	4,816
Sales
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Total revenues	771	759	2,183	2,076
Total revenues	771	759	2,183	2,076
Royalties
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Total revenues	503	451	1,436	1,292
Franchise fees and other revenue
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Total revenues	29	33	90	86
Advertising revenues and other services
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Total revenues	313	269	856	751
Total revenues	313	269	856	751
TH
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Property revenues	161	154	456	433
Total revenues	1,060	1,033	2,976	2,830
TH | Sales
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Total revenues	717	710	2,023	1,937
TH | Royalties
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Total revenues	94	87	261	239
TH | Franchise fees and other revenue
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Total revenues	6	9	19	22
TH | Advertising revenues and other services
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Total revenues	82	73	217	199
BK
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Property revenues	57	57	171	169
Total revenues	538	491	1,551	1,407
BK | Sales
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Total revenues	21	19	64	52
BK | Royalties
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Total revenues	307	274	882	791
BK | Franchise fees and other revenue
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Total revenues	12	18	40	42
BK | Advertising revenues and other services
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Total revenues	141	123	394	353
PLK
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Property revenues	3	3	10	9
Total revenues	188	164	538	477
PLK | Sales
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Total revenues	23	21	66	58
PLK | Royalties
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Total revenues	85	74	241	213
PLK | Franchise fees and other revenue
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Total revenues	2	1	10	8
PLK | Advertising revenues and other services
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Total revenues	75	65	211	189
FHS
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Property revenues	0	0	0	0
Total revenues	51	38	137	102
FHS | Sales
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Total revenues	10	9	30	29
FHS | Royalties
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Total revenues	17	16	52	49
FHS | Franchise fees and other revenue
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Total revenues	9	5	21	14
FHS | Advertising revenues and other services
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Total revenues	$ 15	$ 8	$ 34	$ 10