Restructuring (Details) (USD $) In Millions	6 Months Ended
	Jun. 30, 2011
Restructuring Reserve Roll Forward
Balance at beginning of period	$ 0
Costs charged to expense	22
Costs paid or otherwise settled	(10)
Foreign exchange and other	0
Balance at end of period	12
Employee severance costs
Restructuring Reserve Roll Forward
Balance at beginning of period	0
Costs charged to expense	17
Costs paid or otherwise settled	(10)
Foreign exchange and other	0
Balance at end of period	7
Facilities costs
Restructuring Reserve Roll Forward
Balance at beginning of period	0
Costs charged to expense	4
Costs paid or otherwise settled	0
Foreign exchange and other	0
Balance at end of period	4
Contract Termination Member
Restructuring Reserve Roll Forward
Balance at beginning of period	0
Costs charged to expense	1
Costs paid or otherwise settled	0
Foreign exchange and other	0
Balance at end of period	$ 1