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Segment Information Major Geographic Area (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2015 | Sep. 30, 2015 | Jun. 30, 2015 | Mar. 31, 2015 | Dec. 31, 2014 | Sep. 30, 2014 | Jun. 30, 2014 | Mar. 31, 2014 | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Revenues and Long-Lived Assets |  |  |  |  |  |  |  |  |  |  |
Long-Lived Assets | $ 906.8 |  |  |  | $ 899.8 |  |  |  | $ 906.8 | $ 899.8 |
Revenue | 2,196.2 | $ 1,865.5 | $ 1,876.1 | $ 1,676.0 | 2,207.1 | $ 1,841.1 | $ 1,851.4 | $ 1,637.5 | 7,613.8 | 7,537.1 | $ 7,122.3
Domestic |  |  |  |  |  |  |  |  |  |  |
Revenues and Long-Lived Assets |  |  |  |  |  |  |  |  |  |  |
Long-Lived Assets | 600.1 |  |  |  | 572.9 |  |  |  | 600.1 | 572.9 |
Revenue |  |  |  |  |  |  |  |  | 4,475.5 | 4,184.0 | 3,972.6
Total International |  |  |  |  |  |  |  |  |  |  |
Revenues and Long-Lived Assets |  |  |  |  |  |  |  |  |  |  |
Long-Lived Assets | 306.7 |  |  |  | 326.9 |  |  |  | 306.7 | 326.9 |
Revenue |  |  |  |  |  |  |  |  | 3,138.3 | 3,353.1 | 3,149.7
United Kingdom |  |  |  |  |  |  |  |  |  |  |
Revenues and Long-Lived Assets |  |  |  |  |  |  |  |  |  |  |
Long-Lived Assets | 56.3 |  |  |  | 56.7 |  |  |  | 56.3 | 56.7 |
Revenue |  |  |  |  |  |  |  |  | 687.7 | 688.3 | 568.3
Continental Europe |  |  |  |  |  |  |  |  |  |  |
Revenues and Long-Lived Assets |  |  |  |  |  |  |  |  |  |  |
Long-Lived Assets | 58.6 |  |  |  | 66.4 |  |  |  | 58.6 | 66.4 |
Revenue |  |  |  |  |  |  |  |  | 697.2 | 804.7 | 800.6
Asia Pacific |  |  |  |  |  |  |  |  |  |  |
Revenues and Long-Lived Assets |  |  |  |  |  |  |  |  |  |  |
Long-Lived Assets | 108.8 |  |  |  | 102.2 |  |  |  | 108.8 | 102.2 |
Revenue |  |  |  |  |  |  |  |  | 916.9 | 922.5 | 868.9
Latin America |  |  |  |  |  |  |  |  |  |  |
Revenues and Long-Lived Assets |  |  |  |  |  |  |  |  |  |  |
Long-Lived Assets | 45.0 |  |  |  | 69.2 |  |  |  | 45.0 | 69.2 |
Revenue |  |  |  |  |  |  |  |  | 383.5 | 470.4 | 464.5
Other |  |  |  |  |  |  |  |  |  |  |
Revenues and Long-Lived Assets |  |  |  |  |  |  |  |  |  |  |
Long-Lived Assets | $ 38.0 |  |  |  | $ 32.4 |  |  |  | 38.0 | 32.4 |
Revenue |  |  |  |  |  |  |  |  | $ 453.0 | $ 467.2 | $ 447.4

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