An asterisk * in the title indicates the field is mandatory.
If a field has a default value, it is shown in the Description column.
If the field type is an array, the Field Name has a .[n] suffix, where n is the array index placeholder.
Object and array field names are listed to provide context. If a field belongs to an object or an array, the full field name is shown in dot separated notation.

Title		Description	Details
WhenCreatedUTC			Field Name: WhenCreatedUTC Type: String Format: date-time
IsDefaultArbitrationMailbox		The IsDefaultArbitrationMailbox switch configures this policy as the default retention policy for arbitration mailboxes in your Exchange Online organization. This parameter isn't available in on-premises deployments.	Field Name: IsDefaultArbitrationMailbox Type: Boolean
OrganizationId			Field Name: OrganizationId Type: String
IgnoreDehydratedFlag		This parameter is reserved for internal Microsoft use.	Field Name: IgnoreDehydratedFlag Type: Boolean
AdminDisplayName			Field Name: AdminDisplayName Type: String
PSShowComputerName			Field Name: PSShowComputerName Type: Boolean
	ObjectClass		Field Name: ObjectClass.[n] Type: Array
PSComputerName			Field Name: PSComputerName Type: String
RetentionId		The RetentionId parameter specifies the identity of the retention policy to ensure mailboxes moved from an on-premises Exchange deployment to the cloud continue to have the same retention policy applied to them. The RetentionId parameter is used in cross-premises deployments. You don't need to specify this parameter in on-premises-only deployments.	Field Name: RetentionId Type: String
Identity		The Identity parameter specifies the policy name.	Field Name: Identity Type: String
DistinguishedName			Field Name: DistinguishedName Type: String
OriginatingServer			Field Name: OriginatingServer Type: String
Name *		The Name parameter specifies the policy name.	Field Name: Name Type: String
WhenCreated			Field Name: WhenCreated Type: String Format: date-time
Organization		The Organization parameter is reserved for internal Microsoft use.	Field Name: Organization Type: String
ExchangeVersion			Field Name: ExchangeVersion Type: String
IsDefault		The IsDefault switch configures this policy as the default retention policy in your Exchange Online organization. The default retention policy is applied to users who don't have a retention policy explicitly applied (including $null). After the user has a retention policy applied or set to $null, the default retention policy is no longer applied. This parameter isn't available in on-premises deployments.	Field Name: IsDefault Type: Boolean
DomainController		The DomainController parameter specifies the fully qualified domain name (FQDN) of the domain controller that writes this configuration change to Active Directory.	Field Name: DomainController Type: String
ObjectCategory			Field Name: ObjectCategory Type: String
IsValid			Field Name: IsValid Type: Boolean
WhenChanged			Field Name: WhenChanged Type: String Format: date-time
WhenChangedUTC			Field Name: WhenChangedUTC Type: String Format: date-time
ObjectState			Field Name: ObjectState Type: String
	RetentionPolicyTagLinks	The RetentionPolicyTagLinks parameter specifies the names of retention policy tags to be associated with this policy.	Field Name: RetentionPolicyTagLinks.[n] Type: Array
RunspaceId			Field Name: RunspaceId Type: String
Guid			Field Name: Guid Type: String

Model: device/exchange/RetentionPolicy

Model Details: device/exchange/RetentionPolicy