Business Combinations (Details 2) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2011
Purchased Intangible Assets:
Purchased intangible assets	$ 233
Developed technology [Member]
Purchased Intangible Assets:
Purchased intangible assets	148
Intangible Assets, Useful Life, Minimum	10
Intangible Assets, Useful Life, Maximum	14
In-process research and development [Member]
Purchased Intangible Assets:
Purchased intangible assets	45
Intangible Assets, Useful Life, Minimum	10
Intangible Assets, Useful Life, Maximum	13
Customer relationships [Member]
Purchased Intangible Assets:
Purchased intangible assets	37
Intangible Assets, Useful Life, Minimum	3
Intangible Assets, Useful Life, Maximum	10
Other [Member]
Purchased Intangible Assets:
Purchased intangible assets	$ 3
Intangible Assets, Useful Life, Minimum	1
Intangible Assets, Useful Life, Maximum	10