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MERGER WITH HISTORICAL DUPONT AND BUSINESS SEPARATION (Notes)
12 Months Ended
Dec. 31, 2021
Related Party Transactions [Abstract]  
Separation from DowDuPont BUSINESS SEPARATION
In the first quarter of 2019, in anticipation of DowDuPont's intended separation of its materials science business, UCC's assets and liabilities aligned with TDCC's specialty products business were transferred to TDCC as part of the internal reorganization steps to align TDCC's specialty products business to DowDuPont. In order to align entity ownership under TDCC, UCC distributed shares and assets to TDCC through dividends or asset distributions. As a result, in February 2019, UCC issued to TDCC a dividend of 1,067 shares of common stock of Dow International Holdings Company (“DIHC”), a cost method investment. Prior to the distribution, UCC had an 11.9 percent ownership interest in DIHC with the other 88.1 percent owned by TDCC and its other wholly owned subsidiaries. After the dividend, UCC’s investment in DIHC was reduced to 4.7 percent and resulted in a reduction in "Investments in related companies" of $401 million. UCC also transferred, as an asset distribution, the assets and liabilities aligned with TDCC's specialty products business for an additional dividend of $71 million to TDCC. The results of these transactions are reflected in “Investments in related companies” and “Retained earnings” in the consolidated balance sheets. See Note 19 for additional information.

The Corporation evaluated the impact of the specialty products product line transfer and determined it did not represent a strategic shift that had a major effect on the Corporation’s operations and financial results and did not qualify as an individually significant component of the Corporation. As a result, this transfer was not reported as discontinued operations.