In XBRL filings, obligations that are not itemized anywhere in the footnotes are tagged OtherSundryLiabilitiesNoncurrent. Many companies report a single other liabilities line, tagged OtherLiabilitiesNoncurrent, that combines those sundry amounts with larger identifiable ones. How much ends up in a miscellaneous figure therefore depends on the company's level of disclosure and on how a data provider maps its lines.
Regulation S-X Rule 5-02.24 governs the other liabilities caption. Any single item that does not fit in an earlier liability caption must be stated separately, on the balance sheet or in a note, when it exceeds 5 percent of total liabilities. Commitments and contingent liabilities are addressed under a separate caption, Rule 5-02.25, and are recorded on the balance sheet only when a loss is probable and can be reasonably estimated.
These liabilities are easy to overlook but can matter. Some, like environmental remediation, litigation reserves, and asset retirement obligations, behave much like debt: they are fixed claims that will require cash, and analysts sometimes add them to debt when measuring leverage. Others, like customer deposits, are part of normal operations. A balance that grows faster than the business, or that swings sharply between years, is worth tracing in the footnotes, since releases of estimated reserves can boost reported earnings.