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Subsequent Events (Details) (USD $) In Millions, unless otherwise specified	Sep. 30, 2014
Subsequent Events [Abstract]
Purchase Price	$ 308

X

- Definition

Purchase Price

+ References

No definition available.

+ Details

Name:	nwl_PurchasePrice
Namespace Prefix:	nwl_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Details

Name:	us-gaap_SubsequentEventsAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration