Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Millions	3 Months Ended				6 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2021	Jun. 30, 2020
Revenues:
Total revenues	$ 1,438		$ 1,048		$ 2,698	$ 2,273
Operating costs and expenses:
Cost of sales	467		339		868	738
Franchise and property expenses	121		132		237	255
Advertising expenses	238		203		474	429
General and administrative expenses	113		94		218	196
(Income) loss from equity method investments	3		16		5	18
Other operating expenses (income), net	8		21		(34)	5
Total operating costs and expenses	950		805		1,768	1,641
Income from operations	488		243		930	632
Interest expense, net	126		128		250	247
Income before income taxes	362		115		680	385
Income tax (benefit) expense	(29)		(49)		18	(3)
Net income	391	$ 271	164	$ 224	662	388
Net income (loss) attributable to noncontrolling interests	1		1		2	1
Net income attributable to common unitholders	390		163		660	387
Class A common units
Operating costs and expenses:
Net income	259	179	106	144
Net income attributable to common unitholders	$ 259		$ 106		$ 438	$ 250
Earnings per unit - basic and diluted
Earnings per share, basic (in shares)	$ 1.28		$ 0.52		$ 2.17	$ 1.24
Earnings per share, diluted (in shares)	$ 1.28		$ 0.52		$ 2.17	$ 1.24
Weighted average units outstanding - basic and diluted
Weighted average number of shares outstanding, basic (in dollars per share)	202,000		202,000		202,000	202,000
Weighted average number of shares outstanding, diluted (in dollars per share)	202,000		202,000		202,000	202,000
Partnership exchangeable units
Operating costs and expenses:
Net income	$ 131	$ 91	$ 57	$ 80
Net income attributable to common unitholders	$ 131		$ 57		$ 222	$ 137
Earnings per unit - basic and diluted
Earnings per share, basic (in shares)	$ 0.84		$ 0.35		$ 1.43	$ 0.83
Earnings per share, diluted (in shares)	$ 0.84		$ 0.35		$ 1.43	$ 0.83
Weighted average units outstanding - basic and diluted
Weighted average number of shares outstanding, basic (in dollars per share)	155,000		164,000		155,000	165,000
Weighted average number of shares outstanding, diluted (in dollars per share)	155,000		164,000		155,000	165,000
Sales
Revenues:
Sales	$ 590		$ 406		$ 1,097	$ 909
Franchise and property revenues
Revenues:
Total revenues	614		450		1,162	975
Advertising revenues
Revenues:
Sales	234		192		439	389
Total revenues	$ 234		$ 192		$ 439	$ 389