Supplemental Financial Information - Condensed Consolidating Statements of Operations (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Revenues:
Franchise and property revenues	$ 722	$ 744
Total revenues	1,225	1,266
Operating costs and expenses:
Cost of sales	399	406
Franchise and property expenses	126	133
Selling, general and administrative expenses	325	312
(Income) loss from equity method investments	2	(2)
Other operating expenses (income), net	(16)	(17)
Total operating costs and expenses	836	832
Income from operations	389	434
Interest expense, net	119	132
Income before income taxes	270	302
Income tax expense	46	56
Net income	224	246
Equity in earnings of consolidated subsidiaries	0	0
Net income	224	246
Comprehensive income (loss) attributable to noncontrolling interests	0	0
Net income attributable to common unitholders	224	246
Comprehensive income (loss)	(319)	294
Eliminations
Revenues:
Franchise and property revenues	0	0
Total revenues	0	0
Operating costs and expenses:
Cost of sales	0	0
Franchise and property expenses	0	0
Selling, 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	(224)	(246)
Net income	(224)	(246)
Comprehensive income (loss) attributable to noncontrolling interests	0	0
Net income attributable to common unitholders	(224)	(246)
Comprehensive income (loss)	319	(294)
Consolidated Borrowers | Reportable Legal Entities
Revenues:
Franchise and property revenues	722	744
Total revenues	1,225	1,266
Operating costs and expenses:
Cost of sales	399	406
Franchise and property expenses	126	133
Selling, general and administrative expenses	325	312
(Income) loss from equity method investments	2	(2)
Other operating expenses (income), net	(16)	(17)
Total operating costs and expenses	836	832
Income from operations	389	434
Interest expense, net	119	132
Income before income taxes	270	302
Income tax expense	46	56
Net income	224	246
Equity in earnings of consolidated subsidiaries	0	0
Net income	224	246
Comprehensive income (loss) attributable to noncontrolling interests	0	0
Net income attributable to common unitholders	224	246
Comprehensive income (loss)	(319)	294
RBILP | Reportable Legal Entities
Revenues:
Franchise and property revenues	0	0
Total revenues	0	0
Operating costs and expenses:
Cost of sales	0	0
Franchise and property expenses	0	0
Selling, 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	224	246
Net income	224	246
Comprehensive income (loss) attributable to noncontrolling interests	0	0
Net income attributable to common unitholders	224	246
Comprehensive income (loss)	(319)	294
Sales
Revenues:
Sales	503	522
Sales | Eliminations
Revenues:
Sales	0	0
Sales | Consolidated Borrowers | Reportable Legal Entities
Revenues:
Sales	503	522
Sales | RBILP | Reportable Legal Entities
Revenues:
Sales	$ 0	$ 0