Share-Based Compensation (Details 2) (USD $) In Millions, except Share data in Thousands, unless otherwise specified	9 Months Ended			3 Months Ended
	Sep. 30, 2013 Stock Options	Sep. 30, 2013 Restricted Stock Units	Sep. 30, 2013 Performance- Based Restricted Stock Units	Sep. 30, 2013 superceded maximum	Sep. 30, 2013 Maximum
Share-Based Compensation
Vested in period, total fair value				$ 4.0	$ 6.0
Stock option activity
Outstanding at the beginning of the Period (in shares)	42,592
Granted (in shares)	6,639
Exercised/Released (in shares)	(9,951)
Forfeited (in shares)	(863)
Expired (in shares)	(36)
Outstanding at the end of the period (in shares)	38,381
Restricted and Performance-Based Restricted Stock Units
Nonvested at the beginning of the period, Share Equivalent		4,463	26
Granted, Share Equivalent		1,517	45
Exercised, Share Equivalent		(832)	(6)
Forfeited, Share Equivalent		(173)	(8)
Nonvested at the end of the period, Share Equivalent		4,975	57
Compensation cost and expected weighted-average period related to nonvested awards
Unrecognized compensation cost	$ 369.7	$ 243.6	$ 4.4
Expected weighted-average period in years of compensation cost to be recognized	2 years 2 months 12 days	1 year 7 months 6 days	1 year 9 months 18 days