XML 67 R50.htm IDEA: XBRL DOCUMENT v3.20.2

DEBT (Details) - USD ($)	6 Months Ended	12 Months Ended
	Jun. 30, 2020	Dec. 31, 2019	Jun. 23, 2020
Accounts Receivable Securitization Facility
Debt Instrument [Line Items]
Debt Instrument, Issuance Date	Jun. 22, 2020
Line of Credit Facility, Maximum Borrowing Capacity	$ 1,025,000,000	$ 600,000,000
Line of Credit Facility, Opportunity to Increase Borrowing Capacity	$ 375,000,000
Debt Instrument, Maturity Date	Jun. 22, 2023
Debt Instrument, Basis Spread on Variable Rate	1.20%	0.95%
Line of Credit Facility, Commitment Fee Percentage	0.45%
Accounts Receivable Securitization Facility | Interest Rate Floor [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	0.50%
Revolving Credit Facility
Debt Instrument [Line Items]
Debt Instrument, Issuance Date	Jun. 22, 2020
Line of Credit Facility, Maximum Borrowing Capacity	$ 1,100,000,000
Line of Credit Facility, Opportunity to Increase Borrowing Capacity	500,000,000
Revolving Credit Facility | Letter of Credit [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	$ 175,000,000
5.50% Senior Notes due 2023
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	5.50%
Debt Instrument, Face Amount		$ 350,000,000.0
Senior Notes tender offer consideration per $1,000 principal amount			$ 1,012.50
Senior Notes early tender payment per $1,000 principal amount			50.00
Senior Notes consent fee per $1,000 principal amount			2.50
Senior Notes	$ 58,600,000
6.00% Senior Notes due 2025
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	6.00%
Debt Instrument, Face Amount		$ 250,000,000.0
Senior Notes tender offer consideration per $1,000 principal amount			1,012.50
Senior Notes early tender payment per $1,000 principal amount			50.00
Senior Notes consent fee per $1,000 principal amount			$ 2.50
Senior Notes	$ 4,200,000
7.125% Senior Notes due 2025
Debt Instrument [Line Items]
Debt Instrument, Issuance Date	Jun. 12, 2020
Debt Instrument, Maturity Date	Jun. 15, 2025
Debt Instrument, Interest Rate, Stated Percentage	7.125%
Debt Instrument, Face Amount	$ 1,500,000,000
Discount percentage of par value	100.00%
Debt Instrument, Redemption Price, Percentage	35.00%
Percentage of principal amount of Senior Notes accelerated under default	25.00%
7.250% Senior Notes due 2028
Debt Instrument [Line Items]
Debt Instrument, Issuance Date	Jun. 12, 2020
Debt Instrument, Maturity Date	Jun. 15, 2028
Debt Instrument, Interest Rate, Stated Percentage	7.25%
Debt Instrument, Face Amount	$ 1,325,000,000
Discount percentage of par value	99.244%
Debt Instrument, Redemption Price, Percentage	35.00%
Percentage of principal amount of Senior Notes accelerated under default	25.00%
Minimum [Member] | Revolving Credit Facility | London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	1.25%
Minimum [Member] | Revolving Credit Facility | Prime Rate [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	0.25%
Maximum [Member] | Revolving Credit Facility | London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	1.50%
Maximum [Member] | Revolving Credit Facility | Prime Rate [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	0.50%

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

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=119993939&loc=d3e28551-108399

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400

+ Details

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

X

- Definition

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

+ 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(a)(1))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

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

X

- Definition

Date the debt instrument was issued, in CCYY-MM-DD format.

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

+ Details

Name:	us-gaap_DebtInstrumentIssuanceDate1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

X

- 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

X

- Definition

Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(2))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258

+ Details

Name:	us-gaap_DebtInstrumentMaturityDate
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
-Subparagraph e
-URI http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823

+ Details

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

X

- Definition

The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used.

+ References

No definition available.

+ Details

Name:	us-gaap_LineOfCreditFacilityCommitmentFeePercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
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://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=120391452&loc=d3e13212-122682

+ Details

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

X

- Definition

Including the current and noncurrent portions, carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer). Senior note holders are paid off in full before any payments are made to junior note holders.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03.16(a))
-URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910

Reference 2: 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

+ Details

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

X

- Definition

Discount percentage of par value

+ References

No definition available.

+ Details

Name:	wcc_DiscountPercentageOfParValue
Namespace Prefix:	wcc_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Line of Credit Facility, Opportunity to Increase Borrowing Capacity

+ References

No definition available.

+ Details

Name:	wcc_LineOfCreditFacilityOpportunityToIncreaseBorrowingCapacity
Namespace Prefix:	wcc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Percentage of principal amount of Senior Notes accelerated under default

+ References

No definition available.

+ Details

Name:	wcc_PercentageOfPrincipalAmountOfSeniorNotesAcceleratedUnderDefault
Namespace Prefix:	wcc_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Senior Notes consent fee per $1,000 principal amount

+ References

No definition available.

+ Details

Name:	wcc_SeniorNotesConsentFeePer1000PrincipalAmount
Namespace Prefix:	wcc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Senior Notes early tender payment per $1,000 principal amount

+ References

No definition available.

+ Details

Name:	wcc_SeniorNotesEarlyTenderPaymentPer1000PrincipalAmount
Namespace Prefix:	wcc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Senior Notes tender offer consideration per $1,000 principal amount

+ References

No definition available.

+ Details

Name:	wcc_SeniorNotesTenderOfferConsiderationPer1000PrincipalAmount
Namespace Prefix:	wcc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Details

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

X

- Details

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

X

- Details

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

X

- Details

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

X

- Details

Name:	us-gaap_LongtermDebtTypeAxis=wcc_A550SeniorNotesDue2023Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_LongtermDebtTypeAxis=wcc_A600SeniorNotesDue2025Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_LongtermDebtTypeAxis=wcc_A7125SeniorNotesDue2025Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_LongtermDebtTypeAxis=wcc_A7250SeniorNotesDue2028Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

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

X

- Details

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

X

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: