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Summary of Significant Accounting Policies Advertising Costs (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Segment Reporting Information [Line Items] |  |  |
Company Operated Restaurant Advertising Expense | $ 347.2 | $ 334.5 | $ 377.6
Other Marketing Related Expenses | $ 41.7 | $ 63.8 | $ 82.9

X
- Definition Advertising costs of Company-operated restaurants included in operating expenses + References No definition available. + Details
Name: | mcd_CompanyOperatedRestaurantAdvertisingExpense
Namespace Prefix: | mcd_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Production costs for radio and television advertising as well as other marketing-related expenses included in selling, general and administrative expenses. + References No definition available. + Details
Name: | mcd_OtherMarketingRelatedExpenses
Namespace Prefix: | mcd_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_SegmentReportingInformationLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration