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Consolidated Statements of Stockholder's Equity (Parenthetical) In Millions, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Stockholders' equity [Roll Forward] |  |  |
Employee stock options (in shares) | 2.2 | 0.8 | 2.1

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

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