v2.4.0.8

Fair Value Disclosures Fair Value Disclosures (Non-recurring Fair Value Measurements) (Details) (USD $) In Millions, unless otherwise specified | 9 Months Ended
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Sep. 30, 2013
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
Impairment of Goodwill, Intangibles And Other Long-Lived Assets Of Discontinued Operations, Pretax | $ 22.7

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- Definition Impairment of Goodwill, Intangibles And Other Long-Lived Assets Of Discontinued Operations, Pretax + References No definition available. + Details
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Namespace Prefix: | nwl_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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