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Summary of Significant Accounting Policies Restaurant Information by Ownership Type (Detail) $ in Millions | Dec. 31, 2020 USD ($) Restaurant | Dec. 31, 2019 USD ($) Restaurant | Dec. 31, 2018 Restaurant
--- | --- | --- | ---
Segment Reporting Information [Line Items] |  |  |
Number of Restaurants | Restaurant | 39,198 | 38,695 | 37,855
Debt obligations, fair value | $ 43,700.0 |  |
Amounts outstanding | $ 37,440.4 | $ 34,177.2 |
Franchised restaurants: |  |  |
Segment Reporting Information [Line Items] |  |  |
Number of Restaurants | 36,521 | 36,059 | 35,085
Company-operated restaurants: |  |  |
Segment Reporting Information [Line Items] |  |  |
Number of Restaurants | 2,677 | 2,636 | 2,770
Conventional franchised | Franchised restaurants: |  |  |
Segment Reporting Information [Line Items] |  |  |
Number of Restaurants | 21,712 | 21,837 | 21,685
Developmental licensed | Franchised restaurants: |  |  |
Segment Reporting Information [Line Items] |  |  |
Number of Restaurants | 7,663 | 7,648 | 7,225
Affiliated | Franchised restaurants: |  |  |
Segment Reporting Information [Line Items] |  |  |
Number of Restaurants | 7,146 | 6,574 | 6,175

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- Definition The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. + References No definition available. + Details
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