Employee Benefit Plans (Details 7) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	$ 9,880	$ 9,150
Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	1,802	1,538
Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	5,413	5,036
Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	2,665	2,576
Equity Securities [Member] | U.S. [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair Value Measurements, Valuation Techniques	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities.	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities.
Defined Benefit Plan, Fair Value of Plan Assets	558	575
Equity Securities [Member] | Non-U.S. [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair Value Measurements, Valuation Techniques	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities.	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities.
Defined Benefit Plan, Fair Value of Plan Assets	1,269	923
Equity Securities [Member] | Fair Value, Inputs, Level 1 [Member] | U.S. [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	558	575
Equity Securities [Member] | Fair Value, Inputs, Level 1 [Member] | Non-U.S. [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	1,216	886
Equity Securities [Member] | Fair Value, Inputs, Level 2 [Member] | U.S. [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Equity Securities [Member] | Fair Value, Inputs, Level 2 [Member] | Non-U.S. [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	53	37
Equity Securities [Member] | Fair Value, Inputs, Level 3 [Member] | U.S. [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Equity Securities [Member] | Fair Value, Inputs, Level 3 [Member] | Non-U.S. [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Mutual Funds [Member] | U.S. [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair Value Measurements, Valuation Techniques	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities.	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities.
Defined Benefit Plan, Fair Value of Plan Assets	3	69
Mutual Funds [Member] | Non-U.S. [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair Value Measurements, Valuation Techniques	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities.	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities.
Defined Benefit Plan, Fair Value of Plan Assets	43	129
Mutual Funds [Member] | Non-U.S. Emerging Markets [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair Value Measurements, Valuation Techniques	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities.	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities.
Defined Benefit Plan, Fair Value of Plan Assets	327	466
Mutual Funds [Member] | Diversified Fixed Income [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair Value Measurements, Valuation Techniques	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities.	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities.
Defined Benefit Plan, Fair Value of Plan Assets	218	390
Mutual Funds [Member] | High Yield [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair Value Measurements, Valuation Techniques	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities; Income approach. Techniques to convert future amounts to a single present amount based on market expectations (including present value techniques, option-pricing and excess earnings models).	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities; Income approach. Techniques to convert future amounts to a single present amount based on market expectations (including present value techniques, option-pricing and excess earnings models).
Defined Benefit Plan, Fair Value of Plan Assets	348	153
Mutual Funds [Member] | Fair Value, Inputs, Level 1 [Member] | U.S. [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Mutual Funds [Member] | Fair Value, Inputs, Level 1 [Member] | Non-U.S. [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Mutual Funds [Member] | Fair Value, Inputs, Level 1 [Member] | Non-U.S. Emerging Markets [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Mutual Funds [Member] | Fair Value, Inputs, Level 1 [Member] | Diversified Fixed Income [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Mutual Funds [Member] | Fair Value, Inputs, Level 1 [Member] | High Yield [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Mutual Funds [Member] | Fair Value, Inputs, Level 2 [Member] | U.S. [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	3	69
Mutual Funds [Member] | Fair Value, Inputs, Level 2 [Member] | Non-U.S. [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	43	129
Mutual Funds [Member] | Fair Value, Inputs, Level 2 [Member] | Non-U.S. Emerging Markets [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	327	466
Mutual Funds [Member] | Fair Value, Inputs, Level 2 [Member] | Diversified Fixed Income [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	218	390
Mutual Funds [Member] | Fair Value, Inputs, Level 2 [Member] | High Yield [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	348	153
Mutual Funds [Member] | Fair Value, Inputs, Level 3 [Member] | U.S. [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Mutual Funds [Member] | Fair Value, Inputs, Level 3 [Member] | Non-U.S. [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Mutual Funds [Member] | Fair Value, Inputs, Level 3 [Member] | Non-U.S. Emerging Markets [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Mutual Funds [Member] | Fair Value, Inputs, Level 3 [Member] | Diversified Fixed Income [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Mutual Funds [Member] | Fair Value, Inputs, Level 3 [Member] | High Yield [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Commingled Funds [Member] | U.S. [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair Value Measurements, Valuation Techniques	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities.	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities.
Defined Benefit Plan, Fair Value of Plan Assets	864	824
Commingled Funds [Member] | Non-U.S. [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair Value Measurements, Valuation Techniques	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities.	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities.
Defined Benefit Plan, Fair Value of Plan Assets	782	688
Commingled Funds [Member] | Non-U.S. Emerging Markets [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair Value Measurements, Valuation Techniques	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities.	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities.
Defined Benefit Plan, Fair Value of Plan Assets	319	178
Commingled Funds [Member] | Diversified Fixed Income [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair Value Measurements, Valuation Techniques	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities.	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities.
Defined Benefit Plan, Fair Value of Plan Assets	680	763
Commingled Funds [Member] | High Yield [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair Value Measurements, Valuation Techniques	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities.	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities.
Defined Benefit Plan, Fair Value of Plan Assets	98	38
Commingled Funds [Member] | Fair Value, Inputs, Level 1 [Member] | U.S. [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Commingled Funds [Member] | Fair Value, Inputs, Level 1 [Member] | Non-U.S. [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Commingled Funds [Member] | Fair Value, Inputs, Level 1 [Member] | Non-U.S. Emerging Markets [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Commingled Funds [Member] | Fair Value, Inputs, Level 1 [Member] | Diversified Fixed Income [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Commingled Funds [Member] | Fair Value, Inputs, Level 1 [Member] | High Yield [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Commingled Funds [Member] | Fair Value, Inputs, Level 2 [Member] | U.S. [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	864	824
Commingled Funds [Member] | Fair Value, Inputs, Level 2 [Member] | Non-U.S. [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	782	688
Commingled Funds [Member] | Fair Value, Inputs, Level 2 [Member] | Non-U.S. Emerging Markets [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	319	178
Commingled Funds [Member] | Fair Value, Inputs, Level 2 [Member] | Diversified Fixed Income [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	680	763
Commingled Funds [Member] | Fair Value, Inputs, Level 2 [Member] | High Yield [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	39	25
Commingled Funds [Member] | Fair Value, Inputs, Level 3 [Member] | U.S. [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Commingled Funds [Member] | Fair Value, Inputs, Level 3 [Member] | Non-U.S. [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Commingled Funds [Member] | Fair Value, Inputs, Level 3 [Member] | Non-U.S. Emerging Markets [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Commingled Funds [Member] | Fair Value, Inputs, Level 3 [Member] | Diversified Fixed Income [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Commingled Funds [Member] | Fair Value, Inputs, Level 3 [Member] | High Yield [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	59	13
Private Equity Funds [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair Value Measurements, Valuation Techniques	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities; Income approach. Techniques to convert future amounts to a single present amount based on market expectations (including present value techniques, option-pricing and excess earnings models).	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities; Income approach. Techniques to convert future amounts to a single present amount based on market expectations (including present value techniques, option-pricing and excess earnings models).
Defined Benefit Plan, Fair Value of Plan Assets	1,366	1,466
Private Equity Funds [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Private Equity Funds [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Private Equity Funds [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	1,366	1,466
Real Estate [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair Value Measurements, Valuation Techniques	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities; Income approach. Techniques to convert future amounts to a single present amount based on market expectations (including present value techniques, option-pricing and excess earnings models).	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities; Income approach. Techniques to convert future amounts to a single present amount based on market expectations (including present value techniques, option-pricing and excess earnings models).
Defined Benefit Plan, Fair Value of Plan Assets	688	613
Real Estate [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Real Estate [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Real Estate [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	688	613
Hedge Funds [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair Value Measurements, Valuation Techniques	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities; Income approach. Techniques to convert future amounts to a single present amount based on market expectations (including present value techniques, option-pricing and excess earnings models).	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities; Income approach. Techniques to convert future amounts to a single present amount based on market expectations (including present value techniques, option-pricing and excess earnings models).
Defined Benefit Plan, Fair Value of Plan Assets	552	484
Hedge Funds [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Hedge Funds [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Hedge Funds [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	552	484
Fixed Income Funds [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair Value Measurements, Valuation Techniques	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities; Income approach. Techniques to convert future amounts to a single present amount based on market expectations (including present value techniques, option-pricing and excess earnings models).	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities; Income approach. Techniques to convert future amounts to a single present amount based on market expectations (including present value techniques, option-pricing and excess earnings models).
Defined Benefit Plan, Fair Value of Plan Assets	155	573
Fixed Income Funds [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Fixed Income Funds [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	155	573
Fixed Income Funds [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Foreign Exchange Contract [Member] | Assets [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair Value Measurements, Valuation Techniques	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities.	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities.
Foreign Exchange Contract [Member] | Liabilities [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair Value Measurements, Valuation Techniques	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities.	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities.
Cash and Cash Equivalents [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair Value Measurements, Valuation Techniques	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities.	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities.
Defined Benefit Plan, Fair Value of Plan Assets	1,610	818
Cash and Cash Equivalents [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	28	77
Cash and Cash Equivalents [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	1,582	741
Cash and Cash Equivalents [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	$ 0	$ 0