Share-Based Payments (Details 1) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2016	Mar. 31, 2015
Summary of share based compensation expense associated with different programs
Subtotal	$ 54.3	$ 91.0
Capitalized share-based compensation costs	(3.1)	(3.4)
Share-based compensation expense included in total costs and expenses	51.2	87.6
Market stock units
Summary of share based compensation expense associated with different programs
Share-based compensation expense	13.4	17.0
Time-vested restricted stock units
Summary of share based compensation expense associated with different programs
Share-based compensation expense	30.1	31.9
Cash settled performance shares
Summary of share based compensation expense associated with different programs
Share-based compensation expense	0.2	23.8
Performance units
Summary of share based compensation expense associated with different programs
Share-based compensation expense	6.9	13.2
Employee stock purchase plan
Summary of share based compensation expense associated with different programs
Share-based compensation expense	$ 3.7	$ 5.1

Share based compensation expense included in costs and expenses.

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Summary of share-based compensation expense associated with different programs.

+ References

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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

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-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

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-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

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The amount of expense, net of income tax, 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.

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Represents the compensation cost capitalized during the period arising from equity-based compensation arrangements (for example, shares of stock, units, 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
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