XML 103 R85.htm IDEA: XBRL DOCUMENT v3.19.1

Segment Information - Additional Information (Detail)	3 Months Ended
	Mar. 31, 2019 Segment
Sales Information [Line Items]
Number of reportable segments	4

X

- Definition

Sales Information [Line Items]

+ References

No definition available.

+ Details

Name:	nwl_SalesInformationLineItems
Namespace Prefix:	nwl_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

+ References

No definition available.

+ Details

Name:	us-gaap_NumberOfReportableSegments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration