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Summary of Significant Accounting Policies (Details 3) $ in Millions | 12 Months Ended
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Dec. 31, 2018 USD ($) Years | Dec. 31, 2017 USD ($) | Dec. 31, 2016 USD ($)
Impairment or Disposal of Property, Plant and Equipment [Abstract] |  |  |
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 |  |
Leases and Leasehold Improvements [Abstract] |  |  |
Approximate number of restaurants operated on leased land and/or buildings | 517 |  |
Goodwill and Intangible Assets [Abstract] |  |  |
Goodwill Written Off Related To Sale Of Business Unit Years From Acquisition | Years | 2 |  |
Fair Value Goodwill Written Off Related To Sale Of Business Unit Minimum Years Refranchised | Years | 2 |  |
Minimum [Member] | Buildings and improvements |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Estimated useful life used in the calculation of the depreciation and amortization on a straight-line basis (in years) | 5 years |  |
Minimum [Member] | Machinery and equipment |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Estimated useful life used in the calculation of the depreciation and amortization on a straight-line basis (in years) | 3 years |  |
Maximum [Member] | Buildings and improvements |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Estimated useful life used in the calculation of the depreciation and amortization on a straight-line basis (in years) | 25 years |  |
Maximum [Member] | Machinery and equipment |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Estimated useful life used in the calculation of the depreciation and amortization on a straight-line basis (in years) | 20 years |  |
Continuing Operations [Member] |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Deferred Tax Assets, Net of Valuation Allowance, Current | $ | $ 195 | $ 139 |
Foreign Currency [Abstract] |  |  |
Foreign currency translation adjustment | $ | 245 |  |
Direct Marketing Costs [Abstract] |  |  |
Advertising Expense | $ | $ 131 | $ 245 | $ 260

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- Definition Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. + References No definition available. + Details
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- Definition Minimum number of years from acquisition that a company restaurant is sold, after which we include goodwill in the carrying amount of the restaurants disposed of based on the relative fair values of the portion of the reporting unit disposed of in the refranchising and the portion of the reporting unit that will be retained. + References No definition available. + Details
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