Goodwill and Other Identifiable Intangible Assets (Carrying Amount of Goodwill Attributable to Each Reportable Segment) (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013
Goodwill [Roll Forward]
Beginning Balance	$ 3,008us-gaap_Goodwill	$ 2,761us-gaap_Goodwill
Goodwill from acquisitions	1,165us-gaap_GoodwillAcquiredDuringPeriod	239us-gaap_GoodwillAcquiredDuringPeriod
Goodwill, Period Increase (Decrease)	(47)us-gaap_GoodwillPeriodIncreaseDecrease	(6)us-gaap_GoodwillPeriodIncreaseDecrease
Currency translation	(325)	14
Ending Balance	3,801us-gaap_Goodwill	3,008us-gaap_Goodwill
Performance Coatings Segment
Goodwill [Roll Forward]
Beginning Balance	2,381	2,143
Goodwill from acquisitions	1,165	235
Goodwill, Period Increase (Decrease)	0	0
Currency translation	(279)	3
Ending Balance	3,267	2,381
Industrial Coatings Segment
Goodwill [Roll Forward]
Beginning Balance	575	560
Goodwill from acquisitions		4
Goodwill, Period Increase (Decrease)	(47)	0
Currency translation	(42)	11
Ending Balance	486	575
Glass Segment
Goodwill [Roll Forward]
Beginning Balance	52	52
Goodwill, Period Increase (Decrease)	0	0
Currency translation	(4)
Ending Balance	48	52
Commodity Chemicals Segment
Goodwill [Roll Forward]
Beginning Balance		6
Goodwill, Period Increase (Decrease)	$ 0	$ (6)

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.

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

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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

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Amount of increase (decrease) from foreign currency translation adjustments and purchase accounting 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

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-Section 50

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