ACCUMULATED OTHER COMPREHENSIVE LOSS - Additional Information (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Equity [Abstract]
Cumulative income tax benefit on foreign exchange adjustments	$ (1)	$ 1
Cumulative income tax benefits related to adjustments for pension benefits	27	29	$ 14
Cumulative income tax expense (benefit) related to adjustments for unrealized gain (loss) on derivatives	$ 0	$ 0	$ 0

Cumulative Other Comprehensive Income Loss, Pension And Other Postretirement Benefit Plans, Income Tax Expense (Benefit)

No definition available.

Name:	axta_CumulativeOtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansIncomeTaxExpenseBenefit
Namespace Prefix:	axta_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant