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ACQUISITION (Tables) | 12 Months Ended
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Dec. 31, 2020
Business Combinations [Abstract] |
Major Classes of Assets Acquired | The following table summarizes the major classes of assets acquired:
(in millions) | December 31, 2020 |
Accounts receivable | $ | 2 |  |
Customer contact list | 8 |  |
Goodwill | 5 |  |

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