Debt Instrument, Basis Spread Reduced On Variable Rate, Step-down Percent for 2.50:1.00 Leverage Ratio

No definition available.

Name:	axta_DebtInstrumentBasisSpreadReducedOnVariableRateStepdownPercentfor2.501.00LeverageRatio
Namespace Prefix:	axta_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Debt Instrument, Basis Spread Reduced On Variable Rate, Step-down Percent for 3.00:1.00 Leverage Ratio

+ References

No definition available.

+ Details

Name:	axta_DebtInstrumentBasisSpreadReducedOnVariableRateStepdownPercentfor3.001.00LeverageRatio
Namespace Prefix:	axta_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Debt Instrument, Basis Spread on Variable Rate, Leverage Ratio Increase

+ References

No definition available.

+ Details

Name:	axta_DebtInstrumentBasisSpreadonVariableRateLeverageRatioIncrease
Namespace Prefix:	axta_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Debt Instrument, Discount, Percent of Par

+ References

No definition available.

+ Details

Name:	axta_DebtInstrumentDiscountPercentofPar
Namespace Prefix:	axta_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Debt instrument periodic payment principal percentage.

+ References

No definition available.

+ Details

Name:	axta_DebtInstrumentPeriodicPaymentPrincipalPercentage
Namespace Prefix:	axta_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Decrease in percentage on excess cash flow for mandatory prepayments of debt

+ References

No definition available.

+ Details

Name:	axta_DecreaseInPercentageOnExcessCashFlowForMandatoryPrepaymentsOfDebt
Namespace Prefix:	axta_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

First lien leverage ratio lower limit

+ References

No definition available.

+ Details

Name:	axta_FirstLienLeverageRatioLowerLimit
Namespace Prefix:	axta_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration

- Definition

First lien leverage ratio upper limit

+ References

No definition available.

+ Details

Name:	axta_FirstLienLeverageRatioUpperLimit
Namespace Prefix:	axta_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration

- Definition

Line of Credit Facility, Percent Not Cash Collateralized

+ References

No definition available.

+ Details

Name:	axta_LineofCreditFacilityPercentNotCashCollateralized
Namespace Prefix:	axta_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Line of Credit Facility, Percent of Credit Facility Outstanding for Accelerated Maturity

+ References

No definition available.

+ Details

Name:	axta_LineofCreditFacilityPercentofCreditFacilityOutstandingforAcceleratedMaturity
Namespace Prefix:	axta_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Percentage on excess cash flow for mandatory prepayments of debt

+ References

No definition available.

+ Details

Name:	axta_PercentageOnExcessCashFlowForMandatoryPrepaymentsOfDebt
Namespace Prefix:	axta_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage on first lien leverage ratio for mandatory prepayments of debt

+ References

No definition available.

+ Details

Name:	axta_PercentageOnFirstLienLeverageRatioForMandatoryPrepaymentsOfDebt
Namespace Prefix:	axta_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of noncash expense included in interest expense to amortize debt discount and premium associated with the related debt instruments. Excludes amortization of financing costs. Alternate captions include noncash interest expense.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 1A
-URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28541-108399

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.8)
-URI http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227

+ Details

Name:	us-gaap_AmortizationOfDebtDiscountPremium
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of the fee that accompanies borrowing money under the debt instrument.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(b))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_DebtInstrumentFeeAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- 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.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount, after accumulated amortization, of debt discount.

+ References

+ Details

Name:	us-gaap_DebtInstrumentUnamortizedDiscount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The amount of debt issuance costs that were incurred during a noncash or partial noncash transaction.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4304-108586

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4313-108586

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4332-108586

+ Details

Name:	us-gaap_DebtIssuanceCostsIncurredDuringNoncashOrPartialNoncashTransaction
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Represents the aggregate of total long-term debt, including current maturities and short-term debt.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtLongtermAndShorttermCombinedAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 50
-Section 40
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=114001942&loc=d3e12355-112629

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 50
-Section 40
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=114001942&loc=d3e12317-112629

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585

+ Details

Name:	us-gaap_GainsLossesOnExtinguishmentOfDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

For a debtor, the aggregate gain (loss) recognized on the restructuring of payables arises from the difference between the book value of the debt before the restructuring and the fair value of the payments on the debt after restructuring is complete.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 60
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6402221&loc=d3e15743-112638

+ Details

Name:	us-gaap_GainsLossesOnRestructuringOfDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

No definition available.

+ Details

Name:	us-gaap_LettersOfCreditOutstandingAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Maximum amount borrowed under the credit facility at any time during the period.

+ References

No definition available.

+ Details

Name:	us-gaap_LineOfCreditFacilityMaximumAmountOutstandingDuringPeriod
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The cash inflow associated with the maturity (principal being due), prepayment and call (request of early payment) of other investments not otherwise defined in the taxonomy.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3179-108585

+ Details

Name:	us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfOtherInvestments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3291-108585

+ Details

Name:	us-gaap_RepaymentsOfDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Write-off of amounts previously capitalized as debt issuance cost in an extinguishment of debt.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.8)
-URI http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227

+ Details

Name:	us-gaap_WriteOffOfDeferredDebtIssuanceCost
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

Name:	us-gaap_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=axta_DollarTermLoanDue2020Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=axta_EuroTermLoanDue2020Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=axta_A2023DollarTermLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=axta_A2023EuroTermLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=axta_A2024DollarTermLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=us-gaap_BaseRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=axta_EurocurrencyRateLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=us-gaap_InterestRateFloorMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=axta_SeniorSecuredCreditFacilitiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	axta_DebtCovenantAxis=axta_LeverageRatioBetween1.25and2.25Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	axta_DebtCovenantAxis=axta_LeverageRatioGreaterThan2.25Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=us-gaap_EurodollarMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=axta_SeniorSecuredCreditFacilityBaseRateLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=us-gaap_FederalFundsEffectiveSwapRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=axta_A2024DollarTermLoanand2023EuroTermLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Borrowings - Senior Secured Credit Facilities (Details) € in Millions						1 Months Ended	12 Months Ended
	Jun. 28, 2019	Jun. 01, 2017 USD ($)	May 31, 2017	Aug. 01, 2016	Feb. 03, 2014 USD ($)	Jan. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Apr. 11, 2018 USD ($)	Apr. 10, 2018 USD ($)	Dec. 15, 2016 USD ($)	Dec. 15, 2016 EUR (€)	Jul. 31, 2016
Debt Instrument [Line Items]
Unamortized discount							$ 10,500,000	$ 12,600,000
Proceeds from maturities, prepayments and calls of other investments (more than)					$ 75,000,000.0
Percentage on excess cash flow for mandatory prepayments of debt					50.00%
Decrease in percentage on excess cash flow for mandatory prepayments of debt					25.00%
Percentage on first lien leverage ratio for mandatory prepayments of debt					0.00%
First lien leverage ratio upper limit					4.25
First lien leverage ratio lower limit				5.50	3.50
Line of credit facility, maximum borrowing capacity							700,000,000.0
Debt Issuance Costs Incurred During Noncash or Partial Noncash Transaction							1,800,000
Loss on extinguishment of debt							200,000	9,500,000	$ 13,400,000
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Line of credit facility, maximum amount outstanding during period							0
Percent of credit facility outstanding for accelerated maturity				30.00%										25.00%
Percent not cash collateralized				103.00%
Letters of credit outstanding, amount							38,800,000	44,800,000
Line of credit facility, remaining borrowing capacity							$ 361,200,000	355,200,000
Dollar Term Loan Due 2020 [Member]
Debt Instrument [Line Items]
Debt, Long-term and Short-term, Combined Amount												$ 1,775,300,000
Euro Term Loan Due 2020 [Member]
Debt Instrument [Line Items]
Debt, Long-term and Short-term, Combined Amount \| €													€ 199.0
2023 Dollar Term Loan [Member]
Debt Instrument [Line Items]
Debt, Long-term and Short-term, Combined Amount		$ 1,541,100,000										$ 1,545,000,000.0
Loss on extinguishment of debt									13,000,000.0
2023 Euro Term Loan [Member]
Debt Instrument [Line Items]
Debt, Long-term and Short-term, Combined Amount \| €													€ 400.0
Gains (losses) on restructuring of debt								(2,900,000)
2024 Dollar Term Loans [Member]
Debt Instrument [Line Items]
Debt, Long-term and Short-term, Combined Amount		$ 2,000,000,000.0								$ 2,430,000,000.0	$ 475,000,000.0
Discount, percent of par		99.875%								99.75%
Unamortized discount		$ 2,500,000								$ 6,000,000.0
Debt instrument periodic payment principal percentage							1.00%
Repayments of debt									30,000,000.0
Gains (losses) on restructuring of debt								(5,500,000)
Debt Instrument, Fee Amount								700,000
Loss on extinguishment of debt									$ 400,000
2024 Dollar Term Loans [Member] \| Base Rate [Member]
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate		0.75%	1.00%
2024 Dollar Term Loans [Member] \| Eurocurrency Rate Loans [Member]
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate		1.75%	2.00%
2024 Dollar Term Loans [Member] \| Eurocurrency Rate Loans [Member] \| Interest Rate Floor [Member]
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate		0.00%	0.00%
2024 Dollar Term Loans [Member] \| Subsequent Event [Member]
Debt Instrument [Line Items]
Repayments of debt						$ 300,000,000.0
Loss on extinguishment of debt						$ 2,700,000
Senior Secured Credit Facilities [Member] \| Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate				2.75%	3.50%
First lien leverage ratio upper limit				3.00
First lien leverage ratio lower limit				2.50
Senior Secured Credit Facilities [Member] \| Revolving Credit Facility [Member] \| Leverage Ratio Between 1.25 and 2.25 [Member]
Debt Instrument [Line Items]
First lien leverage ratio upper limit	2.25
First lien leverage ratio lower limit	1.25
Debt Instrument, Basis Spread on Variable Rate, Leverage Ratio Increase	0.25%
Senior Secured Credit Facilities [Member] \| Revolving Credit Facility [Member] \| Leverage Ratio Greater Than 2.25 [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate, Leverage Ratio Increase	0.25%
Senior Secured Credit Facilities [Member] \| Base Rate [Member] \| Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate	0.50%
Senior Secured Credit Facilities [Member] \| Eurodollar [Member] \| Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate	1.50%			0.00%
Basis spread reduced on variable rate, step-down percent for 3.00:1.00 leverage ratio				2.50%
Basis spread reduced on variable rate, step-down percent for 2.50:1.00 leverage ratio				2.25%
Senior Secured Credit Facility, Base Rate Loans [Member] \| Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate				1.75%	2.50%
First lien leverage ratio upper limit				3.00
First lien leverage ratio lower limit				2.50
Basis spread reduced on variable rate, step-down percent for 3.00:1.00 leverage ratio				1.50%
Basis spread reduced on variable rate, step-down percent for 2.50:1.00 leverage ratio				1.25%
Senior Secured Credit Facility, Base Rate Loans [Member] \| Revolving Credit Facility [Member] \| Leverage Ratio Greater Than 2.25 [Member]
Debt Instrument [Line Items]
First lien leverage ratio upper limit	2.25
Senior Secured Credit Facility, Base Rate Loans [Member] \| Eurodollar [Member] \| Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate				1.00%
Senior Secured Credit Facility, Base Rate Loans [Member] \| Federal Funds Effective Swap Rate [Member] \| Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate				0.50%
2024 Dollar Term Loan and 2023 Euro Term Loan [Member]
Debt Instrument [Line Items]
Gains (losses) on restructuring of debt								(8,400,000)
Write off of deferred debt issuance cost								3,100,000
Amortization of debt discount (premium)								700,000
Debt Instrument, Fee Amount								$ 4,600,000