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Share-Based Payments (Details 1) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Summary of share based compensation expense associated with different programs |  |  |
Share-based compensation expense | $ 183.2 | $ 165.0 | $ 146.2
Subtotal | 207.3 | 252.4 | 255.9
Capitalized share-based compensation costs | (11.0) | (10.0) | (9.8)
Share-based compensation expense included in total costs and expenses | 196.3 | 242.4 | 246.1
Stock options |  |  |
Summary of share based compensation expense associated with different programs |  |  |
Share-based compensation expense | 0.0 | 0.0 | 0.6
Market stock units |  |  |
Summary of share based compensation expense associated with different programs |  |  |
Share-based compensation expense | 38.1 | 37.4 | 32.8
Time-vested restricted stock units |  |  |
Summary of share based compensation expense associated with different programs |  |  |
Share-based compensation expense | 119.0 | 115.4 | 103.5
Cash settled performance units |  |  |
Summary of share based compensation expense associated with different programs |  |  |
Share-based compensation expense | 22.4 | 65.5 | 109.8
Performance units |  |  |
Summary of share based compensation expense associated with different programs |  |  |
Share-based compensation expense | 13.9 | 21.9 | 0.0
Employee stock purchase plan |  |  |
Summary of share based compensation expense associated with different programs |  |  |
Share-based compensation expense | $ 13.9 | $ 12.2 | $ 9.2

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- Definition Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 14.F) -URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 14 -Section F + Details
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