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Consolidated Statements of Stockholder's Equity (Parenthetical) In Millions, unless otherwise specified | 12 Months Ended
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Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Stockholders' equity [Roll Forward] |  |  |
Employee stock options (in shares) | 0.8 nus_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsEmployeesAndDistributorsExercisesInPeriod | 2.2 nus_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsEmployeesAndDistributorsExercisesInPeriod | 0.8 nus_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsEmployeesAndDistributorsExercisesInPeriod

X
- Definition Number of share options (or share units) exercised during the current period. + References No definition available. + Details
Name: | nus_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsEmployeesAndDistributorsExercisesInPeriod
Namespace Prefix: | nus_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | us-gaap_IncreaseDecreaseInStockholdersEquityRollForward
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration