Employee Benefits (Expected Benefit Payments) (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2011
Primary U.S. And Non-U.S. Defined Benefit Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
2012	$ 33
2013	33
2014	34
2015	35
2016	27
2017-2021	169
Non-Qualified SERPs [Member]
Defined Benefit Plan Disclosure [Line Items]
2012	27
2013	13
2014	12
2015	14
2016	13
2017-2021	59
Post-Retirement Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
2012	6
2013	6
2014	7
2015	7
2016	7
2017-2021	$ 35