Pension, Other Postretirement Benefits and Savings Plans (Fair Value of Pension Plan Assets) (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	$ 4,800	$ 4,100
Non-U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	2,455	2,354
Other Plan Investments | Significant Unobservable Inputs (Level 3) | U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	6	3	2
Other Plan Investments | Significant Unobservable Inputs (Level 3) | Non-U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	19	19	19
Cash and Short Term Securities [Member] | U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	156	218
Cash and Short Term Securities [Member] | Non-U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	63	56
Cash and Short Term Securities [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) | U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	139	207
Cash and Short Term Securities [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) | Non-U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	35	32
Cash and Short Term Securities [Member] | Significant Other Observable Inputs (Level 2) | U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	17	11
Cash and Short Term Securities [Member] | Significant Other Observable Inputs (Level 2) | Non-U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	28	24
Cash and Short Term Securities [Member] | Significant Unobservable Inputs (Level 3) | U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	0	0
Cash and Short Term Securities [Member] | Significant Unobservable Inputs (Level 3) | Non-U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	0	0
U.S. Companies [Member] | U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	55	64
U.S. Companies [Member] | Non-U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	23	50
U.S. Companies [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) | U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	55	64
U.S. Companies [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) | Non-U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	23	50
U.S. Companies [Member] | Significant Other Observable Inputs (Level 2) | U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	0	0
U.S. Companies [Member] | Significant Other Observable Inputs (Level 2) | Non-U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	0	0
U.S. Companies [Member] | Significant Unobservable Inputs (Level 3) | U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	0	0
U.S. Companies [Member] | Significant Unobservable Inputs (Level 3) | Non-U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	0	0
Non U.S. Companies [Member] | U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	534	721
Non U.S. Companies [Member] | Non-U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	79	119
Non U.S. Companies [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) | U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	531	715
Non U.S. Companies [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) | Non-U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	79	119
Non U.S. Companies [Member] | Significant Other Observable Inputs (Level 2) | U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	3	6
Non U.S. Companies [Member] | Significant Other Observable Inputs (Level 2) | Non-U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	0	0
Non U.S. Companies [Member] | Significant Unobservable Inputs (Level 3) | U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	0	0
Non U.S. Companies [Member] | Significant Unobservable Inputs (Level 3) | Non-U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	0	0
Commingled Funds [Member] | U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	1,161	1,487
Commingled Funds [Member] | Non-U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	428	376
Commingled Funds [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) | U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	0	0
Commingled Funds [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) | Non-U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	23	21
Commingled Funds [Member] | Significant Other Observable Inputs (Level 2) | U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	1,161	1,487
Commingled Funds [Member] | Significant Other Observable Inputs (Level 2) | Non-U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	405	355
Commingled Funds [Member] | Significant Unobservable Inputs (Level 3) | U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	0	0
Commingled Funds [Member] | Significant Unobservable Inputs (Level 3) | Non-U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	0	0
Mutual Funds [Member] | U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	0	0
Mutual Funds [Member] | Non-U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	54	101
Mutual Funds [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) | U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	0	0
Mutual Funds [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) | Non-U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	7	13
Mutual Funds [Member] | Significant Other Observable Inputs (Level 2) | U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	0	0
Mutual Funds [Member] | Significant Other Observable Inputs (Level 2) | Non-U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	47	88
Mutual Funds [Member] | Significant Unobservable Inputs (Level 3) | U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	0	0
Mutual Funds [Member] | Significant Unobservable Inputs (Level 3) | Non-U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	0	0
Partnership Interests [Member] | U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	328	254
Partnership Interests [Member] | Non-U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	0	0
Partnership Interests [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) | U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	0	0
Partnership Interests [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) | Non-U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	0	0
Partnership Interests [Member] | Significant Other Observable Inputs (Level 2) | U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	119	63
Partnership Interests [Member] | Significant Other Observable Inputs (Level 2) | Non-U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	0	0
Partnership Interests [Member] | Significant Unobservable Inputs (Level 3) | U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	209	191
Partnership Interests [Member] | Significant Unobservable Inputs (Level 3) | Non-U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	0	0
Equity Securities, Equity Collars | U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	(129)
Equity Securities, Equity Collars | Quoted Prices in Active Markets for Identical Assets (Level 1) | U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	0
Equity Securities, Equity Collars | Significant Other Observable Inputs (Level 2) | U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	(129)
Equity Securities, Equity Collars | Significant Unobservable Inputs (Level 3) | U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	0
Corporate Bonds [Member] | U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	1,215	519
Corporate Bonds [Member] | Non-U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	157	130
Corporate Bonds [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) | U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	0	0
Corporate Bonds [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) | Non-U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	15	15
Corporate Bonds [Member] | Significant Other Observable Inputs (Level 2) | U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	1,214	518
Corporate Bonds [Member] | Significant Other Observable Inputs (Level 2) | Non-U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	142	115
Corporate Bonds [Member] | Significant Unobservable Inputs (Level 3) | U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	1	1
Corporate Bonds [Member] | Significant Unobservable Inputs (Level 3) | Non-U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	0	0
Government Bonds [Member] | U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	737	332
Government Bonds [Member] | Non-U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	533	482
Reclassifications from Level 1 to Level 2		423
Government Bonds [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) | U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	0	0
Government Bonds [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) | Non-U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	56	58
Government Bonds [Member] | Significant Other Observable Inputs (Level 2) | U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	735	332
Government Bonds [Member] | Significant Other Observable Inputs (Level 2) | Non-U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	477	424
Government Bonds [Member] | Significant Unobservable Inputs (Level 3) | U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	2	0
Government Bonds [Member] | Significant Unobservable Inputs (Level 3) | Non-U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	0	0
Asset Backed Securities [Member] | U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	46	54
Asset Backed Securities [Member] | Non-U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	5	5
Asset Backed Securities [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) | U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	0	0
Asset Backed Securities [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) | Non-U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	3	2
Asset Backed Securities [Member] | Significant Other Observable Inputs (Level 2) | U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	45	54
Asset Backed Securities [Member] | Significant Other Observable Inputs (Level 2) | Non-U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	2	3
Asset Backed Securities [Member] | Significant Unobservable Inputs (Level 3) | U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	1	0
Asset Backed Securities [Member] | Significant Unobservable Inputs (Level 3) | Non-U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	0	0
Commingled Funds [Member] | U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	624	381
Commingled Funds [Member] | Non-U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	751	723
Commingled Funds [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) | U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	0	0
Commingled Funds [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) | Non-U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	1	10
Commingled Funds [Member] | Significant Other Observable Inputs (Level 2) | U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	624	381
Commingled Funds [Member] | Significant Other Observable Inputs (Level 2) | Non-U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	750	713
Commingled Funds [Member] | Significant Unobservable Inputs (Level 3) | U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	0	0
Commingled Funds [Member] | Significant Unobservable Inputs (Level 3) | Non-U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	0	0
Mutual Funds [Member] | U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	150	16
Mutual Funds [Member] | Non-U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	34	44
Mutual Funds [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) | U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	0	0
Mutual Funds [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) | Non-U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	27	39
Mutual Funds [Member] | Significant Other Observable Inputs (Level 2) | U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	150	16
Mutual Funds [Member] | Significant Other Observable Inputs (Level 2) | Non-U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	7	5
Mutual Funds [Member] | Significant Unobservable Inputs (Level 3) | U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	0	0
Mutual Funds [Member] | Significant Unobservable Inputs (Level 3) | Non-U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	0	0
Debt Securities, Interest Rate Swaptions | U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	(125)
Debt Securities, Interest Rate Swaptions | Quoted Prices in Active Markets for Identical Assets (Level 1) | U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	0
Debt Securities, Interest Rate Swaptions | Significant Other Observable Inputs (Level 2) | U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	(125)
Debt Securities, Interest Rate Swaptions | Significant Unobservable Inputs (Level 3) | U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	0
Commingled Funds | U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	0	0
Commingled Funds | Non-U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	171	150
Commingled Funds | Quoted Prices in Active Markets for Identical Assets (Level 1) | U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	0	0
Commingled Funds | Quoted Prices in Active Markets for Identical Assets (Level 1) | Non-U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	0	3
Commingled Funds | Significant Other Observable Inputs (Level 2) | U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	0	0
Commingled Funds | Significant Other Observable Inputs (Level 2) | Non-U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	8	4
Commingled Funds | Significant Unobservable Inputs (Level 3) | U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	0	0
Commingled Funds | Significant Unobservable Inputs (Level 3) | Non-U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	163	143	122
Real Estate [Member] | U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	37	48
Real Estate [Member] | Non-U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	173	142
Real Estate [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) | U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	37	48
Real Estate [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) | Non-U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	0	0
Real Estate [Member] | Significant Other Observable Inputs (Level 2) | U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	0	0
Real Estate [Member] | Significant Other Observable Inputs (Level 2) | Non-U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	3	4
Real Estate [Member] | Significant Unobservable Inputs (Level 3) | U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	0	0
Real Estate [Member] | Significant Unobservable Inputs (Level 3) | Non-U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	170	138	122
Other Investments [Member] | U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	3	2
Other Investments [Member] | Non-U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	24	19
Other Investments [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) | U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	0	0
Other Investments [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) | Non-U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	3	0
Other Investments [Member] | Significant Other Observable Inputs (Level 2) | U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	1	0
Other Investments [Member] | Significant Other Observable Inputs (Level 2) | Non-U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	2	0
Other Investments [Member] | Significant Unobservable Inputs (Level 3) | U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	2	2
Other Investments [Member] | Significant Unobservable Inputs (Level 3) | Non-U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	19	19
Total Investments [Member] | U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	4,792	4,096
Total Investments [Member] | Non-U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	2,495	2,397
Total Investments [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) | U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	762	1,034
Total Investments [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) | Non-U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	272	362
Total Investments [Member] | Significant Other Observable Inputs (Level 2) | U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	3,815	2,868
Total Investments [Member] | Significant Other Observable Inputs (Level 2) | Non-U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	1,871	1,735
Total Investments [Member] | Significant Unobservable Inputs (Level 3) | U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	215	194
Total Investments [Member] | Significant Unobservable Inputs (Level 3) | Non-U.S.
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Fair Value	$ 352	$ 300