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Long-Term Debt (Accounts Receivable Securitization) (Details) (Secured Credit Facility [Member], USD $)	0 Months Ended
	Sep. 11, 2014	Dec. 19, 2012	Dec. 31, 2014	Dec. 31, 2013
Line of Credit Facility [Line Items]
Term of line of credit (years)		3 years
Securitization agreement, maximum borrowing capacity	$ 500,000,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity	$ 300,000,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Basis spread on securitization agreement	0.70%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Commitment fee percentage on unused amount of each lender's commitment	0.35%us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage
Carrying Value [Member]
Line of Credit Facility [Line Items]
Securitization facility			$ 500,000,000us-gaap_LinesOfCreditFairValueDisclosure / us-gaap_CreditFacilityAxis = mhk_SecuredCreditFacilityMember / us-gaap_FairValueByMeasurementBasisAxis = us-gaap_CarryingReportedAmountFairValueDisclosureMember	$ 300,000,000us-gaap_LinesOfCreditFairValueDisclosure / us-gaap_CreditFacilityAxis = mhk_SecuredCreditFacilityMember / us-gaap_FairValueByMeasurementBasisAxis = us-gaap_CarryingReportedAmountFairValueDisclosureMember

X

- Definition

Term of line of credit.

+ References

No definition available.

+ Details

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

X

- 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

X

- Details

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

X

- 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://www.xbrl.org/2003/role/presentationRef

-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



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 22

-Article 5

+ Details

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

X

- Definition

The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

+ References

No definition available.

+ Details

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

X

- Definition

Fair value portion of contractual arrangement with a lender under which borrowings can be made up to a specific amount at any point in time.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Line-of-Credit Arrangement

-URI http://asc.fasb.org/extlink&oid=6517033

+ Details

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

X

- Details

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Namespace Prefix:
Data Type:	na
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Period Type: