Pension, Other Postretirement Benefits and Savings Plans (Pension Plan Asset Allocation) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
United States Pension Plan of US Entity, Defined Benefit [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Actual Plan Asset Allocations	100.00%	100.00%
Plan Assets, Fair Value	$ 4,800	$ 4,100
Foreign Pension Plan, Defined Benefit [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Actual Plan Asset Allocations	100.00%	100.00%
Plan Assets, Fair Value	2,455	2,354
Hourly United States Pension Plans of US Entity, Defined Benefit
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Percent of Obligation Covered by Interest Rate Swaptions	55.00%
Defined Benefit Plan, Benefit Obligation	4,000
Cash and Short Term Securities | United States Pension Plan of US Entity, Defined Benefit [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Actual Plan Asset Allocations	3.00%	5.00%
Cash and Short Term Securities | Foreign Pension Plan, Defined Benefit [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Actual Plan Asset Allocations	3.00%	2.00%
Equity Securities | United States Pension Plan of US Entity, Defined Benefit [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Actual Plan Asset Allocations	41.00%	62.00%
Equity Securities | Foreign Pension Plan, Defined Benefit [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Actual Plan Asset Allocations	23.00%	27.00%
Target Asset Allocation	25.00%
Equity Securities | Hourly United States Pension Plans of US Entity, Defined Benefit
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Target Asset Allocation	70.00%
Percent of Equities Covered by Equity Collars	75.00%
Plan Assets, Fair Value	1,800
Debt Securities | United States Pension Plan of US Entity, Defined Benefit [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Actual Plan Asset Allocations	55.00%	32.00%
Debt Securities | Foreign Pension Plan, Defined Benefit [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Actual Plan Asset Allocations	59.00%	58.00%
Other Plan Assets | United States Pension Plan of US Entity, Defined Benefit [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Actual Plan Asset Allocations	1.00%	1.00%
Plan Assets, Fair Value	8	4
Other Plan Assets | Foreign Pension Plan, Defined Benefit [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Actual Plan Asset Allocations	15.00%	13.00%
Target Asset Allocation	15.00%
Plan Assets, Fair Value	(40)	(43)
Fixed Income Securities | Foreign Pension Plan, Defined Benefit [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Target Asset Allocation	60.00%
Fixed Income Securities | Hourly United States Pension Plans of US Entity, Defined Benefit
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Target Asset Allocation	30.00%
Equity Securities, Equity Collars | United States Pension Plan of US Entity, Defined Benefit [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Plan Assets, Fair Value	(129)
Debt Securities, Interest Rate Swaptions | United States Pension Plan of US Entity, Defined Benefit [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Plan Assets, Fair Value	$ (125)