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SEGMENT INFORMATION - Geographic Information, Revenue (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2020 | Sep. 30, 2020 | Jun. 30, 2020 | Mar. 31, 2020 | Dec. 31, 2019 | Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Revenues and long-lived assets by geographic region |  |  |  |  |  |  |  |  |  |  |
Revenue | $ 2,213 | $ 2,138 | $ 1,664 | $ 2,012 | $ 2,224 | $ 2,209 | $ 2,152 | $ 2,016 | $ 8,027 | $ 8,601 | $ 8,380
U.S. and Puerto Rico |  |  |  |  |  |  |  |  |  |  |
Revenues and long-lived assets by geographic region |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 4,791 | 5,164 | 5,011
China |  |  |  |  |  |  |  |  |  |  |
Revenues and long-lived assets by geographic region |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 341 | 368 | 361
Canada |  |  |  |  |  |  |  |  |  |  |
Revenues and long-lived assets by geographic region |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 331 | 339 | 319
Egypt |  |  |  |  |  |  |  |  |  |  |
Revenues and long-lived assets by geographic region |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 243 | 218 | 178
Poland |  |  |  |  |  |  |  |  |  |  |
Revenues and long-lived assets by geographic region |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 238 | 231 | 218
Japan |  |  |  |  |  |  |  |  |  |  |
Revenues and long-lived assets by geographic region |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 226 | 241 | 226
Mexico |  |  |  |  |  |  |  |  |  |  |
Revenues and long-lived assets by geographic region |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 225 | 228 | 211
France |  |  |  |  |  |  |  |  |  |  |
Revenues and long-lived assets by geographic region |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 179 | 201 | 205
Germany |  |  |  |  |  |  |  |  |  |  |
Revenues and long-lived assets by geographic region |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 144 | 150 | 170
Russia |  |  |  |  |  |  |  |  |  |  |
Revenues and long-lived assets by geographic region |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 137 | 180 | 154
United Kingdom |  |  |  |  |  |  |  |  |  |  |
Revenues and long-lived assets by geographic region |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 86 | 115 | 117
Spain |  |  |  |  |  |  |  |  |  |  |
Revenues and long-lived assets by geographic region |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 78 | 86 | 83
Other |  |  |  |  |  |  |  |  |  |  |
Revenues and long-lived assets by geographic region |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | $ 1,008 | $ 1,080 | $ 1,127

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