Subsequent Events (Details) (USD $) In Millions, unless otherwise specified	0 Months Ended
	Jan. 30, 2012
Subsequent Event [Line Items]
Expected pretax cost	$ 107
Expected workforce reductions, number of employees	530
Restructuring plan initiation date	Jan. 30, 2012
Expected total cash payments	31.0
Severance And Other Termination Benefits [Member]
Subsequent Event [Line Items]
Expected pretax cost	22
Facility- And Asset-Related Charges [Member]
Subsequent Event [Line Items]
Expected pretax cost	37
Intangible Assets Write Down [Member]
Subsequent Event [Line Items]
Expected pretax cost	$ 48