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Summary of Significant Accounting Policies (Details 2) $ in Millions | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Dec. 31, 2018 weeks | Sep. 30, 2018 weeks | Dec. 31, 2018 USD ($) Months Years | Dec. 31, 2017 USD ($) | Dec. 31, 2016 USD ($)
Fiscal Period Adjustment [Line Items] |  |  |  |  |
Goodwill Written Off Related To Sale Of Business Unit Years From Acquisition |  |  | 2 |  |
Week added as a result of the fiscal year ending on last Saturday in December |  |  | 53 |  |
Frequency of adding a week as a result of the fiscal year ending on the last Saturday in December |  |  | five or six |  |
Number of weeks in each of the first three quarters of each fiscal year | weeks | 16 | 12 |  |  |
Number of weeks in the fourth quarter of each fiscal year with 52 weeks | weeks | 16 |  |  |  |
Number of weeks in the fourth quarter of each fiscal year with 53 weeks | weeks | 17 |  |  |  |
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 |  |
Revenues | $ |  |  | $ 5,688 |  | $ 6,356
Operating Profit | $ |  |  | $ 2,296 | $ 2,761 | 1,682
Fair Value Goodwill Written Off Related To Sale Of Business Unit Minimum Years Refranchised |  |  | 2 |  |
Number of years notes receivable and direct financing leases are beyond and would be included in other assets |  |  | 1 |  |
Number of years notes receivable and direct financing leases are due within and would be included in accounts and notes receivable |  |  | 1 |  |
Number Of Consecutive Years Used As Primary Indicator Of Potential Impairment Of Restaurant Assets |  |  | 2 |  |
53rd Week Impact [Member] |  |  |  |  |
Fiscal Period Adjustment [Line Items] |  |  |  |  |
Revenues | $ |  |  |  |  | 76
Operating Profit | $ |  |  |  |  | $ 28

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