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Subsequent Events Subsequent Event (Details) $ in Billions | 6 Months Ended |
--- | --- | ---
Jun. 30, 2017 USD ($) Restaurant | Jun. 30, 2016 Restaurant
Subsequent Event [Line Items] |  |
Number of Restaurants | Restaurant | 37,011 | 36,504
China and Hong Kong Held for Sale [Member] |  |
Subsequent Event [Line Items] |  |
Number of Restaurants | Restaurant | 2,700 |
Businesses held for sale, ownership percentage to be retained | 20.00% |
Disposal Group, Not Discontinued Operation, Estimated Gain on Disposal | $ | $ 1.0 |
Estimated Proceeds from sale of business | $ | $ 1.6 |

X
- Definition The percentage ownership that the Company will retain under the terms of the businesses held for sale agreement in China and Hong Kong + References No definition available. + Details
Name: | mcd_Businessesheldforsaleownershippercentagetoberetained
Namespace Prefix: | mcd_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Disposal Group, Not Discontinued Operation, Estimated Gain on Disposal + References No definition available. + Details
Name: | mcd_DisposalGroupNotDiscontinuedOperationEstimatedGainonDisposal
Namespace Prefix: | mcd_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The estimated cash inflow associated with the amount received from the sale of a portion of the company's business, for example a segment, division, branch or other business, during the period. + References No definition available. + Details
Name: | mcd_EstimatedProceedsfromDivestitureofBusinesses
Namespace Prefix: | mcd_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Represents the number of restaurants. + References No definition available. + Details
Name: | us-gaap_NumberOfRestaurants
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event. + References No definition available. + Details
Name: | us-gaap_SubsequentEventLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis=mcd_ChinaandHongKongHeldforSaleMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |