Segments (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended				6 Months Ended
	Jun. 30, 2013		Jun. 30, 2012		Jun. 30, 2013		Jun. 30, 2012
Net Revenues [Abstract]
Total net revenues	$ 1,150.7		$ 1,073.8		$ 2,209.9		$ 2,106.3
Segment Operating Income [Abstract]
Total segment contribution margin	494.3		425.6		926.4		812.2
Corporate unallocated expenses	(277.1)	[1]	(264.7)	[1]	(543.2)	[1]	(527.8)	[1]
Amortization of purchased intangible assets	(7.7)	[2]	(8.8)	[2]	(15.2)	[2]	(16.1)	[2]
Share-based compensation expense	(61.5)		(61.8)		(111.4)		(126.8)
Share-based payroll tax expense	(0.6)		(0.6)		(4.1)		(0.9)
Restructuring charges	(8.8)	[3]	(3.2)	[3]	(16.5)	[3]	(5.2)	[3]
Acquisition and litigation charges	(0.1)		0.2		(10.5)		(1.0)
Operating income	138.5		86.7		225.5		134.4
Other (expense) income, net	(12.6)		2.8		(22.7)		(21.6)
Income before income taxes	125.9		89.5		202.8		112.8
PSD Segment [Member]
Net Revenues [Abstract]
Total net revenues	916.0		810.2		1,725.2		1,575.9
Segment Operating Income [Abstract]
Total segment contribution margin	397.5		315.7		727.6		592.0
Depreciation by Segment [Abstract]
Depreciation expense	27.5		28.5		61.9		55.4
SSD Segment [Member]
Net Revenues [Abstract]
Total net revenues	234.7		263.6		484.7		530.4
Segment Operating Income [Abstract]
Total segment contribution margin	96.8		109.9		198.8		220.2
Depreciation by Segment [Abstract]
Depreciation expense	$ 6.9		$ 9.2		$ 16.6		$ 18.4

[1] Amount includes unallocated costs for global functions such as sales, marketing, and general and administrative.

[2] Amount includes amortization expense of purchased intangible assets reported in operating expenses and in cost of revenues.

[3] Amount includes restructuring charges reported in operating expenses and in cost of revenues.