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- Definition

Share Based Compensation Arrangement by Share Based Payment Award, Target Award

+ References

No definition available.

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- Definition

Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

+ References

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- Definition

Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

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- Definition

Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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- Definition

Percentage of vesting of award under share-based payment arrangement.

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- Definition

Weighted average remaining contractual term of exercisable stock options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Stock-Based Compensation (Additional Information) (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum term of the outstanding stock options for the PPG Omnibus Plan and the PPG Stock Plan for certain employees	10 years
Weighted average fair value of options granted (in dollars per share)	$ 43.83	$ 38.55	$ 36.52
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	36 months
Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total unrecognized compensation cost that have not yet vested	$ 10,000,000
Cost not yet recognized, period for recognition	4 months 24 days
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	3 years
Total unrecognized compensation cost that have not yet vested	$ 21,000,000
Cost not yet recognized, period for recognition	1 year 6 months
Restricted Stock Units (RSUs) \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of the target award that is paid based on performance	200.00%
Restricted Stock Units (RSUs) \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of the target award that is paid based on performance	0.00%
Contingent Share Grants
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	3 years
Total unrecognized compensation cost that have not yet vested	$ 0
Earned payout if the target performance is achieved	100.00%
Payout, percentage	0.00%
Contingent Share Grants \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of the target award that is paid based on performance	200.00%
Contingent Share Grants \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of the target award that is paid based on performance	0.00%