SHARE-BASED COMPENSATION - Schedule of Restricted Stock Units Activity (Parenthetical) (Details) shares in Thousands	Dec. 31, 2021 shares
Restricted stock units
Stock Units
Nonvested performance share units that have met the requisite service period and will be released as identified in the grant terms	245

The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date and that have met the requisite service period and will be released as identified in the grant terms.

No definition available.

Name:	wy_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsServicePeriodMetOutstanding
Namespace Prefix:	wy_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant