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Description of Business (Details) $ in Millions | 12 Months Ended
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Dec. 31, 2018 USD ($) Months operating_segments restaurants countries_and_territiories Rate | Dec. 31, 2017 USD ($) | Dec. 31, 2016 USD ($)
Segment Reporting Information [Line Items] |  |  |  |  |  |
Approximate Number Of System Units | restaurants | 48,000 |  |  |  |  |
Percent Of System Units Located Outside United States | 98.00% |  |  |  |  |
Approximate Number Of Countries And Territories Where System Units Are Located | countries_and_territiories | 140 |  |  |  |  |
Number of Operating Segments | operating_segments | 3 |  |  |  |  |
Revenues | $ 5,688 |  |  |  | $ 6,356 |
Operating Profit | 2,296 |  | $ 2,761 |  | 1,682 |
Stock Repurchased During Period, Value | $ 2,394 | [1] | 1,915 | [2] | 5,447 | [2]
Fiscal period months standard first quarter | Months | 2 |  |  |  |  |
Fiscal period months standard second and third quarters | Months | 3 |  |  |  |  |
Fiscal period months standard fourth quarter | Months | 4 |  |  |  |  |
Number of periods or months in advance that certain of our international businesses close their books | Months | 1 |  |  |  |  |
KFC Global Division [Member] |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Revenues | $ 2,644 |  |  |  |  |
Operating Profit | 959 |  | 981 |  | 871 |
Pizza Hut Global Division [Member] |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Revenues | 988 |  |  |  |  |
Operating Profit | 348 |  | 341 |  | 367 |
Taco Bell Global Division [Member] |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Revenues | 2,056 |  |  |  |  |
Operating Profit | $ 633 |  | $ 619 |  | $ 595 |
Minimum [Member] |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Continuing Fees Rate | Rate | 4.00% |  |  |  |  |
Maximum [Member] |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Continuing Fees Rate | Rate | 6.00% |  |  |  |  |
[1] | Includes the effect of $5 million in share repurchases (0.1 million shares) with trade dates on, or prior to, December 31, 2018 but settlement dates subsequent to December 31, 2018.
[2] | 2017 amount excludes and 2016 amount includes the effect of $45 million in share repurchases (0.7 million shares) with trade dates prior to December 31, 2016 but settlement dates subsequent to December 31, 2016.

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