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Segment Information Major Geographic Area (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2016 | Sep. 30, 2016 | Jun. 30, 2016 | Mar. 31, 2016 | Dec. 31, 2015 | Sep. 30, 2015 | Jun. 30, 2015 | Mar. 31, 2015 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Revenues and Long-Lived Assets |  |  |  |  |  |  |  |  |  |  |
Long-Lived Assets | $ 1,004.4 |  |  |  | $ 906.8 |  |  |  | $ 1,004.4 | $ 906.8 |
Revenue | 2,264.5 | $ 1,922.2 | $ 1,917.9 | $ 1,742.0 | 2,196.2 | $ 1,865.5 | $ 1,876.1 | $ 1,676.0 | 7,846.6 | 7,613.8 | $ 7,537.1
Domestic |  |  |  |  |  |  |  |  |  |  |
Revenues and Long-Lived Assets |  |  |  |  |  |  |  |  |  |  |
Long-Lived Assets | 684.8 |  |  |  | 600.1 |  |  |  | 684.8 | 600.1 |
Revenue |  |  |  |  |  |  |  |  | 4,684.8 | 4,475.5 | 4,184.0
Total International |  |  |  |  |  |  |  |  |  |  |
Revenues and Long-Lived Assets |  |  |  |  |  |  |  |  |  |  |
Long-Lived Assets | 319.6 |  |  |  | 306.7 |  |  |  | 319.6 | 306.7 |
Revenue |  |  |  |  |  |  |  |  | 3,161.8 | 3,138.3 | 3,353.1
United Kingdom |  |  |  |  |  |  |  |  |  |  |
Revenues and Long-Lived Assets |  |  |  |  |  |  |  |  |  |  |
Long-Lived Assets | 52.0 |  |  |  | 56.3 |  |  |  | 52.0 | 56.3 |
Revenue |  |  |  |  |  |  |  |  | 695.7 | 687.7 | 688.3
Continental Europe |  |  |  |  |  |  |  |  |  |  |
Revenues and Long-Lived Assets |  |  |  |  |  |  |  |  |  |  |
Long-Lived Assets | 57.0 |  |  |  | 58.6 |  |  |  | 57.0 | 58.6 |
Revenue |  |  |  |  |  |  |  |  | 699.8 | 697.2 | 804.7
Asia Pacific |  |  |  |  |  |  |  |  |  |  |
Revenues and Long-Lived Assets |  |  |  |  |  |  |  |  |  |  |
Long-Lived Assets | 118.3 |  |  |  | 114.9 |  |  |  | 118.3 | 114.9 |
Revenue |  |  |  |  |  |  |  |  | 923.0 | 916.9 | 922.5
Latin America |  |  |  |  |  |  |  |  |  |  |
Revenues and Long-Lived Assets |  |  |  |  |  |  |  |  |  |  |
Long-Lived Assets | 49.0 |  |  |  | 45.0 |  |  |  | 49.0 | 45.0 |
Revenue |  |  |  |  |  |  |  |  | 372.7 | 383.5 | 470.4
Other |  |  |  |  |  |  |  |  |  |  |
Revenues and Long-Lived Assets |  |  |  |  |  |  |  |  |  |  |
Long-Lived Assets | $ 43.3 |  |  |  | $ 31.9 |  |  |  | 43.3 | 31.9 |
Revenue |  |  |  |  |  |  |  |  | $ 470.6 | $ 453.0 | $ 467.2

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