Pension and Postretirement Benefit Plans (Narratives) (Details 1) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Benefit Plan Information
Maximum amount of certain nonqualified unfunded pension and postretirement benefit plans obligations not included in benefit obligation reconciliation	$ 30	$ 30
Qualified and Non-qualified Pension Benefits
Benefit Plan Information
Company-sponsored retirement plans, minimum number of worldwide plans	80
Company-sponsored retirement plans, number of countries	28
United States Qualified and Non-qualified Pension Benefits
Benefit Plan Information
Percentage of funding target for defined benefit pension plans, of the target liability by 2011	100.00%
United States Qualified and Non-qualified Pension Benefits | Long/short equity
Benefit Plan Information
Reclassification of pension assets from Level 3 to Level 2		67
United States Qualified and Non-qualified Pension Benefits | Absolute return
Benefit Plan Information
Reclassification of pension assets from Level 3 to Level 2		$ 100
International Qualified and Non-qualified Pension Benefits
Benefit Plan Information
Company-sponsored retirement plans, minimum number of international plans	70
Company-sponsored retirement plans, number of countries	27