Name:	nwl_ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceShareUnitAdditionalUnitsGrantedMaximumPercentage
Namespace Prefix:	nwl_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Minimum percentage applicable to performance based restricted stock units awarded based on the level of achievement of specified conditions at the vesting date.

No definition available.

Name:	nwl_ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceShareUnitAdditionalUnitsGrantedMinimumPercentage
Namespace Prefix:	nwl_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

The number of outstanding performance share units that could be awarded based on performance as of the end of the reporting period.

No definition available.

Name:	nwl_ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceShareUnitAwardLevelNonvestedAtPeriodEndNumber
Namespace Prefix:	nwl_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

Percentage applicable to performance based restricted stock units awarded based on the threshold level of achievement of specified conditions at end of period.

No definition available.

Name:	nwl_ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceShareUnitOutstandingAtThreshold
Namespace Prefix:	nwl_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

The number of outstanding performance share units at the threshold award level as of the end of the reporting period.

No definition available.

Name:	nwl_ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceShareUnitThresholdAwardLevelNonvestedNumber
Namespace Prefix:	nwl_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.