Retirement Benefits (Schedule of Estimated Amounts That Will Be Amortized from Accumulated Other Comprehensive in the Next Fiscal Year) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014
U.S. Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Prior service credit	$ 0
Net actuarial loss	181
Projected cost	181
Non- U.S Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Prior service credit	(2)
Net actuarial loss	140
Projected cost	138
Foreign Postretirement Benefit Plan, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Prior service credit	0
Net actuarial loss	1
Projected cost	1
U.S. Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Prior service credit	1
Net actuarial loss	1
Projected cost	$ 2