XML 87 R49.htm IDEA: XBRL DOCUMENT v2.4.1.9

Goodwill and Intangibles - Summary of Goodwill Identified by Segment (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Goodwill [Line Items]
Goodwill,Beginning balance	$ 333us-gaap_Goodwill	$ 343us-gaap_Goodwill
Additions	20us-gaap_GoodwillAcquiredDuringPeriod
Currency translation adjustments and other	7us-gaap_GoodwillTranslationAdjustments	(10)us-gaap_GoodwillTranslationAdjustments
Goodwill,Ending balance	346us-gaap_Goodwill	333us-gaap_Goodwill
United States [Member]
Goodwill [Line Items]
Goodwill,Beginning balance	202us-gaap_Goodwill / us-gaap_StatementGeographicalAxis = country_US	204us-gaap_Goodwill / us-gaap_StatementGeographicalAxis = country_US
Additions	20us-gaap_GoodwillAcquiredDuringPeriod / us-gaap_StatementGeographicalAxis = country_US
Currency translation adjustments and other		(2)us-gaap_GoodwillTranslationAdjustments / us-gaap_StatementGeographicalAxis = country_US
Goodwill,Ending balance	222us-gaap_Goodwill / us-gaap_StatementGeographicalAxis = country_US	202us-gaap_Goodwill / us-gaap_StatementGeographicalAxis = country_US
Canada (Member)
Goodwill [Line Items]
Goodwill,Beginning balance	109us-gaap_Goodwill / us-gaap_StatementGeographicalAxis = country_CA	117us-gaap_Goodwill / us-gaap_StatementGeographicalAxis = country_CA
Currency translation adjustments and other	(8)us-gaap_GoodwillTranslationAdjustments / us-gaap_StatementGeographicalAxis = country_CA	(8)us-gaap_GoodwillTranslationAdjustments / us-gaap_StatementGeographicalAxis = country_CA
Goodwill,Ending balance	101us-gaap_Goodwill / us-gaap_StatementGeographicalAxis = country_CA	109us-gaap_Goodwill / us-gaap_StatementGeographicalAxis = country_CA
International [Member]
Goodwill [Line Items]
Goodwill,Beginning balance	22us-gaap_Goodwill / us-gaap_StatementGeographicalAxis = dnow_InternationalMember		22us-gaap_Goodwill / us-gaap_StatementGeographicalAxis = dnow_InternationalMember
Currency translation adjustments and other	1us-gaap_GoodwillTranslationAdjustments / us-gaap_StatementGeographicalAxis = dnow_InternationalMember
Goodwill,Ending balance	$ 23us-gaap_Goodwill / us-gaap_StatementGeographicalAxis = dnow_InternationalMember		$ 22us-gaap_Goodwill / us-gaap_StatementGeographicalAxis = dnow_InternationalMember

X

- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 45

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266

+ Details

Name:	us-gaap_Goodwill
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Details

Name:	us-gaap_GoodwillLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
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Period Type:	duration

X

- Definition

Amount of increase (decrease) from foreign currency translation adjustments of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (f)

-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementGeographicalAxis=country_US
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: