Summary of Significant Accounting Policies (Details) $ / shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2023 USD ($) Years $ / shares	Dec. 31, 2022 USD ($) $ / shares	Dec. 31, 2021 USD ($)
Schedule of Equity Method Investments [Line Items]
Future lease payments due from franchisees on a nominal basis	$ 800
Revenues	7,076	$ 6,842	$ 6,584
Operating Profit	2,318	2,187	2,139
Net Income	1,597	1,325	1,575
Foreign currency translation adjustment	201
Prior Period Reclassification Adjustment	0
Advertising Expense	81	78	84
Franchise advertising and other services expense	1,683	1,667	1,576
Accumulated Deficit	$ (7,616)	(8,507)
Period Within Date Of Corresponding Sales In Which Trade Receivables Are Classified As Accounts And Notes Receivable	30 days
Accounts and notes receivable	$ 776	685
Allowance for doubtful accounts	(39)	(37)
Accounts and notes receivable, net	$ 737	648
Number of years notes receivable and direct financing leases are due within and would be included in accounts and notes receivable | Years	1
Number of years notes receivable and direct financing leases are beyond and would be included in other assets | Years	1
Net amounts included in Other Assets	$ 61	64
Allowance for doubtful accounts related to notes and direct financing lease receivables	$ 1	$ 1
Goodwill Written Off Related To Sale Of Business Unit Years From Acquisition | Years	2
Fair Value Goodwill Written Off Related To Sale Of Business Unit Minimum Years Refranchised | Years	2
Common Stock, No Par Value | $ / shares	$ 0	$ 0
Reclassification of Retained Earnings to Common Stock for Share Repurchase	$ 26	$ 1,131	1,549
Employee stock option and SARs exercises (includes tax impact)	24	31	50
Reduction to Retained earnings
Schedule of Equity Method Investments [Line Items]
Net Income	$ 1,597	1,325	1,575
Minimum [Member]
Schedule of Equity Method Investments [Line Items]
Continuing Fees Rate	4.00%
Minimum [Member] | Capitalized software costs
Schedule of Equity Method Investments [Line Items]
Finite-Lived Intangible Asset, Useful Life	3 years
Minimum [Member] | Buildings and improvements
Schedule of Equity Method Investments [Line Items]
Estimated useful life used in the calculation of the depreciation and amortization on a straight-line basis (in years)	5 years
Minimum [Member] | Machinery, Equipment and Other
Schedule of Equity Method Investments [Line Items]
Estimated useful life used in the calculation of the depreciation and amortization on a straight-line basis (in years)	3 years
Maximum [Member]
Schedule of Equity Method Investments [Line Items]
Continuing Fees Rate	6.00%
Maximum [Member] | Capitalized software costs
Schedule of Equity Method Investments [Line Items]
Finite-Lived Intangible Asset, Useful Life	7 years
Maximum [Member] | Buildings and improvements
Schedule of Equity Method Investments [Line Items]
Estimated useful life used in the calculation of the depreciation and amortization on a straight-line basis (in years)	25 years
Maximum [Member] | Machinery, Equipment and Other
Schedule of Equity Method Investments [Line Items]
Estimated useful life used in the calculation of the depreciation and amortization on a straight-line basis (in years)	20 years
Advertising Cooperatives [Domain]
Schedule of Equity Method Investments [Line Items]
Advertising Expense	$ 13	8	11
Franchise advertising and other services expense	1,293	1,298	1,264
Franchise and property expenses [Member]
Schedule of Equity Method Investments [Line Items]
Sales Allowances, Services	4	5	8
Franchise advertising and other services expenses [Member] [Member]
Schedule of Equity Method Investments [Line Items]
Sales Allowances, Services	3	$ 6	$ (6)
Operating Expense | Advertising Cooperatives [Domain]
Schedule of Equity Method Investments [Line Items]
Sales Allowances, Services	$ 0