Cover Page - shares	6 Months Ended
	Jun. 30, 2020	Jul. 23, 2020
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2020
Document Transition Report	false
Entity File Number	001-36733
Entity Registrant Name	AXALTA COATING SYSTEMS LTD.
Entity Incorporation, State or Country Code	D0
Entity Tax Identification Number	98-1073028
Entity Address, Address Line One	Two Commerce Square
Entity Address, Address Line Two	2001 Market Street
Entity Address, Address Line Three	Suite 3600
Entity Address, City or Town	Philadelphia
Entity Address, State or Province	PA
Entity Address, Postal Zip Code	19103
City Area Code	855
Local Phone Number	547-1461
Title of 12(b) Security	Common Shares, $1.00 par value
Trading Symbol	AXTA
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		235,359,947
Entity Central Index Key	0001616862
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q2
Amendment Flag	false