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Share-Based Payments (Details 1) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Summary of share based compensation expense associated with different programs
Share-based compensation expense	$ 168.7	$ 138.1	$ (169.4)
Subtotal	181.6	169.7	204.4
Capitalized share-based compensation costs	(11.5)	(9.6)	(14.6)
Share-based compensation expense included in total costs and expenses	170.1	160.1	189.8
Market stock units
Summary of share based compensation expense associated with different programs
Share-based compensation expense	27.2	22.4	38.4
Time-vested restricted stock units
Summary of share based compensation expense associated with different programs
Share-based compensation expense	126.6	107.3	120.0
Cash settled performance units
Summary of share based compensation expense associated with different programs
Share-based compensation expense	7.8	18.4	16.3
Performance Units
Summary of share based compensation expense associated with different programs
Share-based compensation expense	3.1	12.3	18.6
Performance stock units settled in stock
Summary of share based compensation expense associated with different programs
Share-based compensation expense	4.7	0.0	0.0
Performance stock units settled in cash
Summary of share based compensation expense associated with different programs
Share-based compensation expense	1.7	0.0	0.0
Employee stock purchase plan
Summary of share based compensation expense associated with different programs
Share-based compensation expense	$ 10.5	$ 9.3	$ 11.1

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Share based compensation expense included in costs and expenses.

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

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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

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
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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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