Employee Benefit Plans (Summary of Net Periodic Benefit Cost) (Details) $ in Millions	12 Months Ended
	Dec. 31, 2015 USD ($)
United States Pension Plans of US Entity, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Unrecognized net actuarial loss (gain)	$ 72
Unrecognized prior service cost (credit)	3
Foreign Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Unrecognized net actuarial loss (gain)	14
Unrecognized prior service cost (credit)	(1)
Other Postretirement Benefit Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Unrecognized prior service cost (credit)	$ (1)