Returns legal-entity and elimination subsidiaries for your organization, limited by your access permissions.
Each subsidiary includes its ID, currency, and timezone. Use its ID with endpoints that require subsidiary_id.
Legal entity subsidiaries also include legal_name, address and tax_id, as shown in Settings → Subsidiary Details.

When the hierarchy feature and hierarchy API support are both enabled for your organization:

• Each subsidiary includes parent_subsidiary_id: its direct parent's ID, or null if it has no parent.
• The response includes root_subsidiary_id: the ID of the configured hierarchy root.
  The root can differ from the default subsidiary.

Otherwise, both fields are omitted.
Parent and root IDs are included even if you cannot access those subsidiaries.
The root ID is included even when the list is empty.
Use a token with access to all subsidiaries to read the complete hierarchy.