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Goodwill (Notes)
6 Months Ended
Jun. 30, 2020
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill Disclosure [Text Block] GOODWILL

The net carrying amount of goodwill was $278 million and $254 million at December 31, 2019 and June 30, 2020, respectively, and is reported in Other assets in the non-current assets section of our consolidated balance sheets.