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Summary of Significant Accounting Policies (Details) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2020 USD ($) | Sep. 30, 2020 USD ($) | Jun. 30, 2020 USD ($) | Mar. 31, 2020 USD ($) | Dec. 31, 2019 USD ($) | Sep. 30, 2019 USD ($) | Jun. 30, 2019 USD ($) | Mar. 31, 2019 USD ($) | Dec. 31, 2020 USD ($) Years | Dec. 31, 2019 USD ($) | Dec. 31, 2018 USD ($)
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Net Income |  | $ 332 | $ 283 | $ 206 | $ 83 | $ 488 | $ 255 | $ 289 | $ 262 | $ 904 | $ 1,294 | $ 1,542
Advertising Expense |  |  |  |  |  |  |  |  |  | 68 | 73 | 96
Operating Profit |  | 482 | 471 | 300 | 250 | 546 | 480 | 471 | 433 | 1,503 | 1,930 | 2,296
Franchise advertising and other services expense |  |  |  |  |  |  |  |  |  | 1,314 | 1,368 | 1,208
Future lease payments due from franchisees on a nominal basis |  | 1,000 |  |  |  |  |  |  |  | 1,000 |  |
Reclassification of Retained Earnings to Common Stock for Share Repurchase |  |  |  |  |  |  |  |  |  | 179 | 796 | 2,356
Employee stock option and SARs exercises (includes tax impact) |  |  |  |  |  |  |  |  |  | 41 | 75 | 41
Revenues |  | 1,743 | 1,448 | 1,198 | 1,263 | 1,694 | 1,339 | 1,310 | 1,254 | 5,652 | 5,597 | 5,688
Accumulated Deficit |  | (7,480) |  |  |  | (7,628) |  |  |  | $ (7,480) | (7,628) |
Number of consecutive years of operating losses used as primary indicator of potential impairment for our semi-annual impairment testing of restaurant assets | Years |  |  |  |  |  |  |  |  |  | 2 |  |
Retained Earnings |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Net Income |  |  |  |  |  |  |  |  |  | $ 904 | 1,294 | 1,542
Employee stock option and SARs exercises (includes tax impact) |  |  |  |  |  |  |  |  |  |  | 18 |
Accounting Standards Update 2016-02 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Accumulated Deficit |  |  |  |  |  | (2) |  |  |  |  | (2) |
Advertising Cooperatives [Domain] |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Advertising Expense |  |  |  |  |  |  |  |  |  | 10 | 10 | 35
Franchise advertising and other services expense |  |  |  |  |  |  |  |  |  | 1,079 | 1,133 | 1,035
Company Sales |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Excluding Assessed Tax |  | 566 | 486 | 403 | 355 | 490 | 364 | 359 | 333 | 1,810 | 1,546 | 2,000
Franchise contributions for advertising and other services |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Excluding Assessed Tax |  | $ 427 | $ 323 | $ 270 | $ 312 | $ 434 | $ 330 | $ 318 | $ 309 | 1,332 | 1,391 | 1,206
United States | Company Sales |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Excluding Assessed Tax |  |  |  |  |  |  |  |  |  | 1,309 | 1,014 |
United States | Franchise [Member] |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Excluding Assessed Tax |  |  |  |  |  |  |  |  |  | 1,050 | 1,059 |
United States | Franchise contributions for advertising and other services |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Excluding Assessed Tax |  |  |  |  |  |  |  |  |  | 818 | 811 |
CHINA | Franchise [Member] |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Excluding Assessed Tax |  |  |  |  |  |  |  |  |  | 255 | 274 |
Other, Outside the U.S. and China [Member] | Company Sales |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Excluding Assessed Tax |  |  |  |  |  |  |  |  |  | 501 | 532 |
Other, Outside the U.S. and China [Member] | Franchise [Member] |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Excluding Assessed Tax |  |  |  |  |  |  |  |  |  | 1,080 | 1,185 |
Other, Outside the U.S. and China [Member] | Franchise contributions for advertising and other services |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Excluding Assessed Tax |  |  |  |  |  |  |  |  |  | 514 | 580 |
KFC Global Division [Member] |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Operating Profit |  |  |  |  |  |  |  |  |  | 922 | 1,052 | 959
Revenues | [1] |  |  |  |  |  |  |  |  | 2,272 | 2,491 | 2,644
KFC Global Division [Member] | United States | Company Sales |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Excluding Assessed Tax |  |  |  |  |  |  |  |  |  | 60 | 74 |
KFC Global Division [Member] | United States | Franchise [Member] |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Excluding Assessed Tax |  |  |  |  |  |  |  |  |  | 184 | 175 |
KFC Global Division [Member] | United States | Franchise contributions for advertising and other services |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Excluding Assessed Tax |  |  |  |  |  |  |  |  |  | 18 | 10 |
KFC Global Division [Member] | CHINA | Franchise [Member] |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Excluding Assessed Tax |  |  |  |  |  |  |  |  |  | 204 | 214 |
KFC Global Division [Member] | Other, Outside the U.S. and China [Member] | Company Sales |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Excluding Assessed Tax |  |  |  |  |  |  |  |  |  | 446 | 497 |
KFC Global Division [Member] | Other, Outside the U.S. and China [Member] | Franchise [Member] |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Excluding Assessed Tax |  |  |  |  |  |  |  |  |  | 833 | 912 |
KFC Global Division [Member] | Other, Outside the U.S. and China [Member] | Franchise contributions for advertising and other services |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Excluding Assessed Tax |  |  |  |  |  |  |  |  |  | 453 | 520 |
Pizza Hut Global Division [Member] |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Operating Profit |  |  |  |  |  |  |  |  |  | 335 | 369 | 348
Revenues | [1] |  |  |  |  |  |  |  |  | 1,002 | 1,027 | 988
Pizza Hut Global Division [Member] | United States | Company Sales |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Excluding Assessed Tax |  |  |  |  |  |  |  |  |  | 21 | 21 |
Pizza Hut Global Division [Member] | United States | Franchise [Member] |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Excluding Assessed Tax |  |  |  |  |  |  |  |  |  | 272 | 282 |
Pizza Hut Global Division [Member] | United States | Franchise contributions for advertising and other services |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Excluding Assessed Tax |  |  |  |  |  |  |  |  |  | 317 | 318 |
Pizza Hut Global Division [Member] | CHINA | Franchise [Member] |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Excluding Assessed Tax |  |  |  |  |  |  |  |  |  | 51 | 60 |
Pizza Hut Global Division [Member] | Other, Outside the U.S. and China [Member] | Company Sales |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Excluding Assessed Tax |  |  |  |  |  |  |  |  |  | 55 | 33 |
Pizza Hut Global Division [Member] | Other, Outside the U.S. and China [Member] | Franchise [Member] |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Excluding Assessed Tax |  |  |  |  |  |  |  |  |  | 222 | 246 |
Pizza Hut Global Division [Member] | Other, Outside the U.S. and China [Member] | Franchise contributions for advertising and other services |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Excluding Assessed Tax |  |  |  |  |  |  |  |  |  | 57 | 58 |
Taco Bell Global Division [Member] |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Operating Profit |  |  |  |  |  |  |  |  |  | 696 | 683 | 633
Revenues | [1] |  |  |  |  |  |  |  |  | 2,031 | 2,079 | 2,056
Taco Bell Global Division [Member] | United States | Company Sales |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Excluding Assessed Tax |  |  |  |  |  |  |  |  |  | 882 | 919 |
Taco Bell Global Division [Member] | United States | Franchise [Member] |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Excluding Assessed Tax |  |  |  |  |  |  |  |  |  | 593 | 602 |
Taco Bell Global Division [Member] | United States | Franchise contributions for advertising and other services |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Excluding Assessed Tax |  |  |  |  |  |  |  |  |  | 483 | 483 |
Taco Bell Global Division [Member] | CHINA | Franchise [Member] |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Excluding Assessed Tax |  |  |  |  |  |  |  |  |  | 0 | 0 |
Taco Bell Global Division [Member] | Other, Outside the U.S. and China [Member] | Company Sales |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Excluding Assessed Tax |  |  |  |  |  |  |  |  |  | 0 | 2 |
Taco Bell Global Division [Member] | Other, Outside the U.S. and China [Member] | Franchise [Member] |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Excluding Assessed Tax |  |  |  |  |  |  |  |  |  | 25 | 27 |
Taco Bell Global Division [Member] | Other, Outside the U.S. and China [Member] | Franchise contributions for advertising and other services |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Excluding Assessed Tax |  |  |  |  |  |  |  |  |  | 4 | 2 |
Franchise and property expenses [Member] |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Sales Allowances, Services |  |  |  |  |  |  |  |  |  | $ 12 | 24 | $ 11
53rd Week Impact [Member] |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Net Income |  |  |  |  |  |  |  |  |  |  | 17 |
Operating Profit |  |  |  |  |  |  |  |  |  |  | 24 |
Revenues |  |  |  |  |  |  |  |  |  |  | $ 66 |
[1] | U.S. revenues included in the combined KFC, Pizza Hut, Taco Bell and Habit Burger Grill Divisions totaled $3.2 billion in 2020, $3.0 billion in 2019 and $2.9 billion in 2018.

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