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SEGMENT INFORMATION - Geographical Information, Long-Lived Assets (Details) - USD ($) $ in Millions | Dec. 31, 2020 | Dec. 31, 2019
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Revenues and long-lived assets by geographic region |  |
Long-lived assets | $ 1,567 | $ 1,466
U.S. and Puerto Rico |  |
Revenues and long-lived assets by geographic region |  |
Long-lived assets | 725 | 656
Ireland |  |
Revenues and long-lived assets by geographic region |  |
Long-lived assets | 328 | 255
Canada |  |
Revenues and long-lived assets by geographic region |  |
Long-lived assets | 110 | 103
Poland |  |
Revenues and long-lived assets by geographic region |  |
Long-lived assets | 83 | 90
Germany |  |
Revenues and long-lived assets by geographic region |  |
Long-lived assets | 80 | 68
Mexico |  |
Revenues and long-lived assets by geographic region |  |
Long-lived assets | 49 | 50
France |  |
Revenues and long-lived assets by geographic region |  |
Long-lived assets | 34 | 30
China |  |
Revenues and long-lived assets by geographic region |  |
Long-lived assets | 31 | 27
Serbia |  |
Revenues and long-lived assets by geographic region |  |
Long-lived assets | 30 | 27
Italy |  |
Revenues and long-lived assets by geographic region |  |
Long-lived assets | 23 | 22
Other |  |
Revenues and long-lived assets by geographic region |  |
Long-lived assets | $ 74 | $ 138

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