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DISCONTINUED OPERATIONS
12 Months Ended
Dec. 31, 2020
Discontinued Operations and Disposal Groups [Abstract]  
DISCONTINUED OPERATIONS DISCONTINUED OPERATIONS    Discontinued operations, net of taxes, for the year ended December 31, 2019 includes discrete tax benefits of $20 million associated with the favorable resolution of certain tax contingencies related to NID. In addition, net cash provided by operating activities in the consolidated statement of cash flows for the year ended December 31, 2019 included a $28 million refund from the taxing authorities related to discontinued operations.