The following is a set of 45 public company XBRL-based financial filings to the SEC where the public company reported the line item "Income (Loss) from Equity Method Investments" as part of the tax provision. Of those 45:

• 41 public companies reported the line item using an existing US GAAP XBRL Taxonomy concept "us-gaap:IncomeLossFromEquityMethodInvestments" (or a similar existing concept).
• 4 public companies (including Hexcel Corp, Oshkosh Corp, Owens Corning, Walgreen Boots Alliance) created an extension concept to report exactly the same line item.

Example 1

Example 2 (includes an intermediate subtotal)