Goodwill and Other Identifiable Intangible Assets (Carrying Amount of Goodwill Attributable to Each Reportable Segment) (Detail) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020
Goodwill [Roll Forward]
Beginning Balance	$ 5,102	$ 4,470
Goodwill from acquisitions	1,365	534
Goodwill, Impairment Loss		(5)
Currency translation	(219)	103
Ending Balance	6,248	5,102
Performance Coatings Segment [Member]
Goodwill [Roll Forward]
Beginning Balance	4,023	3,442
Goodwill from acquisitions	1,188	519
Goodwill, Impairment Loss		(5)
Currency translation	(177)	67
Ending Balance	5,034	4,023
Industrial Coatings Segment
Goodwill [Roll Forward]
Beginning Balance	1,079	1,028
Goodwill from acquisitions	177	15
Goodwill, Impairment Loss		0
Currency translation	(42)	36
Ending Balance	$ 1,214	$ 1,079

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.

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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.

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Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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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.

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