Finance Lease, Liability and Other, Fair Value

No definition available.

Name:	mhk_FinanceLeaseLiabilityandOtherFairValue
Namespace Prefix:	mhk_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Term of line of credit.

+ References

No definition available.

+ Details

Name:	mhk_TermOfLineOfCredit
Namespace Prefix:	mhk_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Carrying value as of the balance sheet date of short-term borrowings using unsecured obligations issued by banks, corporations and other borrowers to investors. The maturities of these money market securities generally do not exceed 270 days.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(13)(2))
-URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(16))
-URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910

Reference 3: 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)(a)(3))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

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

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

+ Details

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

+ 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 210.5-02.17)
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=119993939&loc=d3e28555-108399

+ Details

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

- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (b)(3)
-URI http://asc.fasb.org/extlink&oid=120520924&loc=SL6031897-161870

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(16))
-URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878

Reference 4: 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))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

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

- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

+ Details

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

- Definition

The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

+ References

No definition available.

+ Details

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

- Definition

Fair value portion of notes payable.

+ References

+ Details

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

- Details

Name:	us-gaap_LongtermDebtTypeAxis=mhk_OnePointSevenFivePercentSeniorNotesDueJuneTwelveTwoThousandTwentySevenMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=mhk_ThreePointSixTwoFivePercentSeniorNotesDueMayFifteenTwoThousandThirtyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=mhk_ThreePointEightFivePercentSeniorNotesDueFebruaryOneTwoThousandTwentyThreeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=mhk_TwoPercentSeniorNotesDueJanuaryFourteenTwoThousandTwentyTwoMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FairValueByMeasurementBasisAxis=us-gaap_EstimateOfFairValueFairValueDisclosureMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=mhk_FloatingRateNotesDueMayEighteenthTwentyTwentyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=mhk_FloatingRateNotesDueSeptemberFourTwentyTwentyOneMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=mhk_FiveYearSeniorUnsecuredCreditFacilityDueOctoberEighteenTwoThousandTwentyfourMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FairValueByMeasurementBasisAxis=us-gaap_CarryingReportedAmountFairValueDisclosureMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_StatementGeographicalAxis=country_US
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_StatementGeographicalAxis=srt_EuropeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

Debt - Fair Value and Carrying Value of Debt Instruments (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 27, 2020	Jun. 12, 2020	May 14, 2020	Dec. 31, 2019	Jun. 09, 2015	Jan. 31, 2013
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Less current portion of long term debt and commercial paper	$ 135,350			$ 1,051,498
1.750% Senior Notes due June 12, 2027
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest rate percentage	1.75%	1.75%
3.625% Senior Notes due May 15, 2030
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest rate percentage	3.625%		3.625%
3.85% Senior Notes due February 1, 2023
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest rate percentage	3.85%					3.85%
2.00% Senior Notes due January 14, 2022
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest rate percentage	2.00%				2.00%
Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Finance leases and other	$ 32,779			30,049
Unamortized debt issuance costs	(12,616)			(3,129)
Total debt	2,822,443			2,617,079
Less current portion of long term debt and commercial paper	135,350			1,051,498
Long-term debt, less current portion	2,687,093			1,565,581
Fair Value \| 1.750% Senior Notes due June 12, 2027
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notes payable	578,529			0
Fair Value \| 3.625% Senior Notes due May 15, 2030
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notes payable	546,635			0
Fair Value \| 3.85% Senior Notes due February 1, 2023
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notes payable	640,398			627,144
Fair Value \| 2.00% Senior Notes due January 14, 2022
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notes payable	572,481			580,235
Fair Value \| Floating Rate Notes due May 18, 2020
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notes payable	0			336,066
Fair Value \| Floating rate notes due September 04, 2021
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notes payable	334,602			335,965
Fair Value \| Five-year Senior unsecured Credit Facility, due October 18, 2024
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notes payable	0			16,803
Carrying Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Finance leases and other	32,779			30,049
Unamortized debt issuance costs	(12,616)			(3,129)
Total debt	2,708,505			2,569,886
Less current portion of long term debt and commercial paper	135,350			1,051,498
Long-term debt, less current portion	2,573,155			1,518,388
Carrying Value \| 1.750% Senior Notes due June 12, 2027
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notes payable	561,041			0
Carrying Value \| 3.625% Senior Notes due May 15, 2030
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notes payable	500,000			0
Carrying Value \| 3.85% Senior Notes due February 1, 2023
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notes payable	600,000			600,000
Carrying Value \| 2.00% Senior Notes due January 14, 2022
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notes payable	561,041			560,099
Carrying Value \| Floating Rate Notes due May 18, 2020
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notes payable	0			336,059
Carrying Value \| Floating rate notes due September 04, 2021
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notes payable	336,625			336,059
Carrying Value \| Five-year Senior unsecured Credit Facility, due October 18, 2024
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notes payable	0			16,803
United States \| Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Commercial paper	56,700			317,000
United States \| Carrying Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Commercial paper	56,700			317,000
Europe \| Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Commercial paper	72,935			376,946
Europe \| Carrying Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Commercial paper	$ 72,935			$ 376,946
Senior Secured Credit Facility \| Five-year Senior unsecured Credit Facility, due October 18, 2024
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Term of line of credit	5 years