XML 47 R40.htm IDEA: XBRL DOCUMENT
v3.25.2

Income Tax Expense (Tables) | 6 Months Ended
--- | ---
Jun. 30, 2025
Income Tax Disclosure [Abstract] |
Schedule of Income Tax Expense |
|  | Three Months Ended |  |  | Six Months Ended |
|  | June 30, |  |  | June 30, |
|  | 2025 |  |  | 2024 |  |  | 2025 |  |  | 2024 |
Earnings before income taxes |  | $ | 115.3 |  |  | $ | 87.1 |  |  | $ | 206.0 |  |  | $ | 167.3 |
Income tax expense |  |  | 27.5 |  |  |  | 21.2 |  |  |  | 49.1 |  |  |  | 41.5 |
Effective tax rate |  |  | 23.9 | % |  |  | 24.3 | % |  |  | 23.8 | % |  |  | 24.8 | %

X
- Definition Schedule of income tax expense. + References No definition available. + Details
Name: | awi_ScheduleOfIncomeTaxExpenseTableTextBlock
Namespace Prefix: | awi_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_IncomeTaxDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration