XML 45 R77.htm IDEA: XBRL DOCUMENT
v3.19.3.a.u2

Quarterly Results (Table Footnotes) (Detail) - $ / shares | 3 Months Ended
--- | ---
Sep. 30, 2019 | Sep. 30, 2018
Quarterly Financial Information Disclosure [Abstract] |  |
Dividends declared per common share, amount declared and paid in third quarter | $ 1.16 | $ 1.01
Dividends declared per common share, amount declared in third quarter and paid in fourth quarter | $ 1.25 | $ 1.16

X
- Definition Per share dividends declared and paid during the period for each share of common stock outstanding. + References No definition available. + Details
Name: | mcd_CommonStockDividendsPerShareDeclaredAndPaid
Namespace Prefix: | mcd_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Aggregate dividends declared during the period for each share of common stock outstanding but not paid until later period + References No definition available. + Details
Name: | mcd_CommonStockDividendsPerShareDeclaredNotPaidInSamePeriod
Namespace Prefix: | mcd_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_QuarterlyFinancialInformationDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration