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Share-based and Deferred Compensation Plans (Details) $ / shares in Units, shares in Thousands, $ in Millions | 12 Months Ended
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Dec. 31, 2018 USD ($) groups $ / shares shares | Dec. 31, 2017 USD ($) $ / shares shares | Dec. 31, 2016 USD ($) $ / shares
Award Valuation |  |  |  |  |  |
Risk-free interest rate (in hundredths) |  | 2.50% |  | 1.90% | 1.40% |
Expected term (years) |  | 6 years 6 months |  | 6 years 5 months | 6 years 5 months |
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate |  | 22.00% |  | 22.90% | 27.00% |
Expected dividend yield (in hundredths) |  | 1.80% |  | 1.80% | 2.60% |
Number of homogeneous groups appropriate to group awards into when estimating expected term | groups |  | 2 |  |  |  |
Summary of award activity - Stock options and SARs, additional disclosures [Abstract] |  |  |  |  |  |
Options outstanding at the end of the year (in shares) | shares |  | 753 |  |  |  |
SARs outstanding at the end of the year (in shares) | shares |  | 15,438 |  |  |  |
Options outstanding at the end of the year, Weighted-average exercise price (in dollars per share) | $ / shares |  | $ 42.40 |  |  |  |
SARs outstanding at the end of the year, Weighted-average exercise price (in dollars per share) | $ / shares |  | $ 52.30 |  |  |  |
Impact on net income [Abstract] |  |  |  |  |  |
Employee Service Share-based Compensation, Tax Benefit from Compensation Expense |  | $ 47.0 |  | $ 117.0 |  |
Cash received from stock options exercises |  | 5.5 |  | $ 12.0 | $ 5.0 |
General and administrative expenses |  | $ 895.0 |  |  |  |
Stock Options and Stock Appreciation Rights [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Minimum vesting period of outstanding awards (in years) |  | P1Y07M0D |  |  |  |
Summary of award activity - Stock options and SARs [Roll Forward] |  |  |  |  |  |
Granted (in shares) | shares |  | 2,580 |  |  |  |
Exercised (in shares) | shares |  | (3,832) |  |  |  |
Forfeited or expired (in shares) | shares |  | (842) |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price | $ / shares |  | $ 71.72 |  |  |  |
Summary of award activity - Stock options and SARs, additional disclosures [Abstract] |  |  |  |  |  |
Granted, Weighted-average exercise price (in dollars per share) | $ / shares |  | 78.35 |  |  |  |
Exercised, Weighted-average exercise price (in dollars per share) | $ / shares |  | $ 34.05 |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value |  | $ 626.0 |  |  |  |
Exercisable at the end of the year (in shares) | shares |  | 10,297 |  |  |  |
Exercisable at the end of the year, Weighted-average exercise price (in dollars per share) | $ / shares |  | $ 43.23 |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award, Options, Exercisable Weighted Average Remaining Contractual Term |  | 4 years 8 days |  |  |  |
Exercisable at the end of the year, Aggregate intrinsic value (in dollars) |  | $ 501.0 |  |  |  |
Options outstanding at the end of the year (in shares) | shares |  | 16,191 | [1] | 18,285 |  |
Options outstanding at the end of the year, Weighted-average exercise price (in dollars per share) | $ / shares |  | $ 51.84 |  | $ 44.85 |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term |  | 5 years 6 months |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value | $ / shares |  | $ 16.45 |  | $ 14.08 | $ 14.40 |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value |  | $ 195.0 |  | $ 154.0 | $ 263.0 |
Unrecognized compensation cost |  | 48.0 |  |  |  |
Restricted Stock Units And Performance Share Units [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested in Period, Fair Value |  | 16.0 |  | 10.0 | 7.0 |
Summary of award activity - Stock options and SARs, additional disclosures [Abstract] |  |  |  |  |  |
Unrecognized compensation cost |  | $ 21.0 |  |  |  |
Unvested RSUs and PSUs | shares |  | 1,000 |  |  |  |
Long Term Incentive Plans [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Minimum vesting period of outstanding awards (in years) |  | immediate |  |  |  |
Maximum vesting period of outstanding awards (in years) |  | 5 years |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period |  | 10 years |  |  |  |
Approximate number of shares available for grant (in shares) | shares |  | 28,000 |  |  |  |
Executive Income Deferral Plan [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Percentage of Company match on amount deferred (in hundredths) |  | 33.00% |  |  |  |
Executive Income Deferral Plan [Member] | Restricted Stock Units (RSUs) [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Vesting period (in years) |  | 2 years |  |  |  |
Mark-to-Market of YUM China Funds [Member] | Executive Income Deferral Plan [Member] |  |  |  |  |  |
Impact on net income [Abstract] |  |  |  |  |  |
General and administrative expenses |  | $ 3.0 |  | 18.0 | 30.0 |
Continuing Operations [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Share-based Compensation Expense | [2] | 50.0 |  | 65.0 | 80.0 | [3]
Employee Service Share-based Compensation, Deferred Tax Benefit from Compensation Expense |  | 9.0 |  |  |  |
Impact on net income [Abstract] |  |  |  |  |  |
Employee Service Share-based Compensation, Tax Benefit from Compensation Expense | [4] |  |  | 22.0 | 26.0 |
EID compensation expense not share-based |  | (2.0) |  | 12.0 | 5.0 |
Employee Service Share-based Compensation, Tax Benefit from Exercise of Stock Options |  | 60.0 |  | 153.0 | 109.0 |
General and administrative expenses |  | 895.0 |  | 999.0 | 1,129.0 |
Continuing Operations [Member] | Stock Options and Stock Appreciation Rights [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Share-based Compensation Expense |  | 37.0 |  | 30.0 | 38.0 |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested in Period, Fair Value |  | 28.0 |  | 33.0 | 41.0 |
Continuing Operations [Member] | Performance Share Units [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Share-based Compensation Expense |  | 7.0 |  | 9.0 | 4.0 |
Continuing Operations [Member] | Restricted Stock Units (RSUs) [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Share-based Compensation Expense |  | 6.0 |  | 26.0 | $ 38.0 |
Unallocated amounts to segment [Member] | Mark-to-Market of YUM China Funds [Member] | Executive Income Deferral Plan [Member] |  |  |  |  |  |
Impact on net income [Abstract] |  |  |  |  |  |
General and administrative expenses |  | $ 3.0 |  | 18.0 |  |
Restaurant-level Employees [Domain] | Long Term Incentive Plans [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period |  | 10 years |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Average Exercise Period |  | 5 years |  |  |  |
Vesting period (in years) |  | 4 years |  |  |  |
Executives [Domain] | Long Term Incentive Plans [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period |  | 10 years |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Average Exercise Period |  | 6 years 6 months |  |  |  |
Vesting period (in years) |  | 4 years |  |  |  |
Award Valuation |  |  |  |  |  |
Graded vesting schedule of grants made to executives under other stock award plans |  | 25% |  |  |  |
U.S. Pension Plans [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Defined Benefit Plan, Plan Assets, Benefits Paid |  | $ 73.0 |  | $ 76.0 |  |
[1] | Outstanding awards include 753 options and 15,438 SARs with weighted average exercise prices of $42.40 and $52.30, respectively. Outstanding awards represent YUM awards held by employees of both YUM and Yum China.
[2] | Includes $3 million of appreciation and $18 million of depreciation in the market price of Yum China's stock in 2018 and 2017, respectively. See Note 5.
[3] | Includes $30 million due to modifications of awards in connection with the Separation that was not allocated to any of our operating segments for performance purposes. See Note 5.
[4] | Deferred tax benefit recognized does not reflect the impact of the Tax Act. See Note 17.

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- Definition For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(3)-(4) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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