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v3.19.3.a.u2

Business Segments, Currencies (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2019 | Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2018 | Sep. 30, 2018 | Jun. 30, 2018 | Mar. 31, 2018 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Schedule of Significant Currencies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Document Period End Date |  |  |  |  |  |  |  |  | Dec. 31, 2019 |  |
Percentage of assets from countries having restrictions |  |  |  |  |  |  |  |  | 5.00% | 6.00% |
Revenues | $ 5,400.5 | $ 4,495.6 | $ 4,266.5 | $ 3,820.6 | $ 4,889.7 | $ 3,969.8 | $ 3,903.7 | $ 3,555.2 | $ 17,983.2 | $ 16,318.4 | $ 14,453.2
Total Assets | 13,672.6 |  |  |  | 10,025.5 |  |  |  | 13,672.6 | 10,025.5 |
United States dollar [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule of Significant Currencies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | 10,054.9 | 8,523.8 | 7,572.1
Total Assets | 9,015.7 |  |  |  | 5,866.4 |  |  |  | 9,015.7 | 5,866.4 |
Euro [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule of Significant Currencies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | 1,507.7 | 1,527.1 | 1,244.8
Total Assets | 984.7 |  |  |  | 932.2 |  |  |  | 984.7 | 932.2 |
British pound [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule of Significant Currencies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | 1,514.8 | 1,526.3 | 1,447.3
Total Assets | 1,320.0 |  |  |  | 1,187.3 |  |  |  | 1,320.0 | 1,187.3 |
Australian dollar [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule of Significant Currencies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | 924.5 | 916.7 | 909.7
Total Assets | 323.3 |  |  |  | 291.6 |  |  |  | 323.3 | 291.6 |
Indian rupee [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule of Significant Currencies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | 651.8 | 580.4 | 516.2
Total Assets | 372.4 |  |  |  | 317.5 |  |  |  | 372.4 | 317.5 |
Chinese yuan [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule of Significant Currencies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | 505.9 | 505.5 | 439.7
Total Assets | 207.2 |  |  |  | 190.4 |  |  |  | 207.2 | 190.4 |
Hong Kong dollar [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule of Significant Currencies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | 533.8 | 487.2 | 450.0
Total Assets | 218.5 |  |  |  | 187.1 |  |  |  | 218.5 | 187.1 |
Singapore dollar [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule of Significant Currencies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | 309.2 | 458.7 | 268.0
Total Assets | 217.3 |  |  |  | 236.5 |  |  |  | 217.3 | 236.5 |
Canada, Dollars |  |  |  |  |  |  |  |  |  |  |
Schedule of Significant Currencies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | 435.5 | 390.5 | 333.4
Total Assets | 194.3 |  |  |  | 172.0 |  |  |  | 194.3 | 172.0 |
Japanese yen [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule of Significant Currencies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | 349.4 | 285.2 | 238.2
Total Assets | 146.8 |  |  |  | 96.4 |  |  |  | 146.8 | 96.4 |
Other currencies [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule of Significant Currencies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | 1,195.7 | 1,117.0 | $ 1,033.8
Total Assets | $ 672.4 |  |  |  | $ 548.1 |  |  |  | $ 672.4 | $ 548.1 |

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