Employee Benefit Plans (Narrative) (Details) (USD $) In Millions	9 Months Ended
	Sep. 30, 2011	Dec. 31, 2010
Pension Benefits U.S. Plans [Member]
Employer's expected minimum contribution		$ 90
Employer's expected maximum contribution		100
Employer contribution	89
Estimated future employer contributions in next fiscal year minimum remaining	1
Estimated future employer contributions in next fiscal year maximum remaining	11
Pension Benefits Non-U.S. Plans [Member]
Employer's expected minimum contribution		40
Employer's expected maximum contribution		45
Employer contribution	8
Estimated future employer contributions in next fiscal year minimum remaining	32
Estimated future employer contributions in next fiscal year maximum remaining	$ 37