Supplemental Financial Information - Condensed Consolidating Statements of Operations (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Revenues:
Total revenues	$ 1,590	$ 1,451
Operating costs and expenses:
Cost of sales	550	494
Franchise and property expenses	123	130
Advertising expenses and other services	271	247
General and administrative expenses	175	133
(Income) loss from equity method investments	7	13
Other operating expenses (income), net	17	(16)
Total operating costs and expenses	1,143	1,001
Income from operations	447	450
Interest expense, net	142	127
Income before income taxes	305	323
Income tax expense	28	53
Net income	277	270
Equity in earnings of consolidated subsidiaries	0	0
Net income	277	270
Net income (loss) attributable to noncontrolling interests	1	1
Net income attributable to common unitholders	276	269
Comprehensive income (loss)	230	475
Eliminations
Revenues:
Total revenues	0	0
Operating costs and expenses:
Cost of sales	0	0
Franchise and property expenses	0	0
Advertising expenses and other services	0	0
General and administrative expenses	0	0
(Income) loss from equity method investments	0	0
Other operating expenses (income), net	0	0
Total operating costs and expenses	0	0
Income from operations	0	0
Interest expense, net	0	0
Income before income taxes	0	0
Income tax expense	0	0
Net income	0	0
Equity in earnings of consolidated subsidiaries	(277)	(270)
Net income	(277)	(270)
Net income (loss) attributable to noncontrolling interests	(1)	(1)
Net income attributable to common unitholders	(276)	(269)
Comprehensive income (loss)	(230)	(475)
Consolidated Borrowers | Reportable Legal Entities
Revenues:
Total revenues	1,590	1,451
Operating costs and expenses:
Cost of sales	550	494
Franchise and property expenses	123	130
Advertising expenses and other services	271	247
General and administrative expenses	175	133
(Income) loss from equity method investments	7	13
Other operating expenses (income), net	17	(16)
Total operating costs and expenses	1,143	1,001
Income from operations	447	450
Interest expense, net	142	127
Income before income taxes	305	323
Income tax expense	28	53
Net income	277	270
Equity in earnings of consolidated subsidiaries	0	0
Net income	277	270
Net income (loss) attributable to noncontrolling interests	1	1
Net income attributable to common unitholders	276	269
Comprehensive income (loss)	230	475
RBILP | Reportable Legal Entities
Revenues:
Total revenues	0	0
Operating costs and expenses:
Cost of sales	0	0
Franchise and property expenses	0	0
Advertising expenses and other services	0	0
General and administrative expenses	0	0
(Income) loss from equity method investments	0	0
Other operating expenses (income), net	0	0
Total operating costs and expenses	0	0
Income from operations	0	0
Interest expense, net	0	0
Income before income taxes	0	0
Income tax expense	0	0
Net income	0	0
Equity in earnings of consolidated subsidiaries	277	270
Net income	277	270
Net income (loss) attributable to noncontrolling interests	1	1
Net income attributable to common unitholders	276	269
Comprehensive income (loss)	230	475
Sales
Revenues:
Total revenues	668	609
Sales | Eliminations
Revenues:
Total revenues	0	0
Sales | Consolidated Borrowers | Reportable Legal Entities
Revenues:
Total revenues	668	609
Sales | RBILP | Reportable Legal Entities
Revenues:
Total revenues	0	0
Franchise and property revenues
Revenues:
Total revenues	668	615
Franchise and property revenues | Eliminations
Revenues:
Total revenues	0	0
Franchise and property revenues | Consolidated Borrowers | Reportable Legal Entities
Revenues:
Total revenues	668	615
Franchise and property revenues | RBILP | Reportable Legal Entities
Revenues:
Total revenues	0	0
Advertising revenues and other services
Revenues:
Total revenues	254	227
Advertising revenues and other services | Eliminations
Revenues:
Total revenues	0	0
Advertising revenues and other services | Consolidated Borrowers | Reportable Legal Entities
Revenues:
Total revenues	254	227
Advertising revenues and other services | RBILP | Reportable Legal Entities
Revenues:
Total revenues	$ 0	$ 0