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Selected Quarterly Financial Data (Unaudited) - Schedule of Quarterly Results of Operations(Details) - USD ($) $ / shares in Units, $ in Millions | 3 Months Ended | 12 Months Ended
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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
Quarterly Financial Information Disclosure [Abstract] |  |  |  |  |  |  |  |  |  |  |
Revenue | $ 550.3 | $ 544.7 | $ 554.1 | $ 545.4 | $ 589.8 | $ 613.1 | $ 646.6 | $ 635.0 | $ 2,194.6 | $ 2,484.5 | $ 2,510.9
Operating income | 173.8 | 171.0 | 181.8 | 178.8 | 193.2 | 215.2 | 195.2 | 231.4 | 705.3 | 835.0 | 815.2
Income before income taxes | 281.9 | 226.2 | 235.9 | 230.5 | 289.2 | 249.1 | 262.0 | 290.3 | 974.6 | 1,090.6 | 1,013.5
Net income (controlling interest) | $ 150.2 | $ 110.2 | $ 108.3 | $ 104.0 | $ 147.5 | $ 107.7 | $ 127.6 | $ 126.7 | $ 472.8 | $ 509.5 | $ 433.9
Earnings per share - diluted (in dollars per share) | $ 2.67 | $ 2.02 | $ 1.98 | $ 1.90 | $ 2.67 | $ 1.96 | $ 2.29 | $ 2.26 | $ 8.57 | $ 9.17 | $ 7.70

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