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Goodwill and Other Identifiable Intangible Assets (Carrying Amount of Goodwill) (Details) $ in Millions	9 Months Ended
	Sep. 30, 2021 USD ($)
Goodwill [Roll Forward]
Beginning Balance	$ 5,102
Acquisitions	(1,291)
Currency	(187)
Ending Balance	6,206
Performance Coatings [Member]
Goodwill [Roll Forward]
Beginning Balance	4,023
Acquisitions	(1,156)
Currency	(156)
Ending Balance	5,023
Industrial Coatings [Member]
Goodwill [Roll Forward]
Beginning Balance	1,079
Acquisitions	(135)
Currency	(31)
Ending Balance	$ 1,183

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.

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Amount of increase (decrease) from adjustments after acquisition date under purchase accounting 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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