Defined Benefit Postretirement Plans and Defined Contribution Plan (Details 6) (USD $) In Millions, unless otherwise specified	12 Months Ended							1 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2014 Scenario, Forecast [Member]	Dec. 31, 2013 United States Pension Plans of US Entity, Defined Benefit [Member]	Dec. 31, 2013 Foreign Pension Plans, Defined Benefit [Member]	Dec. 31, 2013 Other Postretirement Benefit Plans, Defined Benefit [Member]	Jan. 31, 2014 Subsequent Event [Member] United States Pension Plans of US Entity, Defined Benefit [Member]
Defined Benefit Plan Estimated Future Benefit Payments [Line Items]
2014					$ 96	$ 14	$ 19
2015					94	14	20
2016					95	16	20
2017					96	18	20
2018					92	21	20
2019 through 2023					368	120	98
Defined Benefit Plan, Estimated Future Employer Contributions in Next Fiscal Year				77				11
Cash Contributions Expected To Be Paid From General Assets Unfunded Plan	74
Cash Contributions Expected To Be Paid From General Assets Postretirement Plan	19
Defined Benefit Plan, Information about Plan Assets [Abstract]
Defined Contribution Plan, Cost Recognized	$ 26	$ 25	$ 21