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.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 805
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479907/805-20-50-5

+ Details

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

- Definition

The amount of property, plant, and equipment recognized as of the acquisition date.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 55
-Paragraph 37
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479303/805-10-55-37

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 805
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479907/805-20-50-1

+ Details

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

- Definition

The cash outflow for acquisition of land for use; excludes purchases of land held as inventory or as investments.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 13
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-13

+ Details

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

- Definition

Area Of Timberlands Purchased.

+ References

No definition available.

+ Details

Name:	wy_AreaOfTimberlandsPurchased
Namespace Prefix:	wy_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	duration

- Definition

Area of timberlands to be purchased.

+ References

No definition available.

+ Details

Name:	wy_AreaOfTimberlandsToBePurchased
Namespace Prefix:	wy_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	duration

- Definition

Business combination, recognized identifiable assets acquired and liabilities assumed,timber and timberlands at cost,less depletion.

+ References

No definition available.

+ Details

Name:	wy_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedTimberAndTimberlandsAtCostLessDepletion
Namespace Prefix:	wy_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Details

Name:	srt_StatementGeographicalAxis=stpr_AL
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:	srt_StatementGeographicalAxis=stpr_MS
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

TIMBERLAND ACQUISITIONS - Additional Information (Details) a in Thousands, $ in Millions	Oct. 09, 2024 USD ($) a	Aug. 28, 2024 USD ($) a	Jul. 25, 2024 USD ($) a	May 30, 2024 USD ($) a	Jul. 19, 2023 USD ($) a
ALABAMA
Business Acquisition [Line Items]
Area of timberlands purchased \| a		32		13
Area of timberlands to be purchased \| a			84
Payments to acquire timberlands		$ 82	$ 244	$ 48
Timberlands acquisition, timber and timberlands at cost, less depletion		81		47
Timberlands acquisition, property and equipment, net		$ 1		$ 1
ALABAMA \| Subsequent Event
Business Acquisition [Line Items]
Area of timberlands purchased \| a	39
Payments to acquire timberlands	$ 114
Mississippi [Member]
Business Acquisition [Line Items]
Area of timberlands purchased \| a					22
Payments to acquire timberlands					$ 60
Timberlands acquisition, timber and timberlands at cost, less depletion					59
Timberlands acquisition, property and equipment, net					$ 1