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Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

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Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset.

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Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement.

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Fair value as of the balance sheet date of derivative instrument not designated as hedging instrument and classified as an asset.

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Fair value as of the balance sheet date of derivative instrument not designated as hedging instrument and classified as a liability.

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Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset.

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Fair value portion of investment securities, including, but not limited to, marketable securities, derivative financial instruments, and investments accounted for under the equity method.

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Total debt and equity financial instruments including: (1) securities held-to-maturity, (2) trading securities, and (3) securities available-for-sale.

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Fair value portion of an agreement for an unconditional promise by the maker to pay the holder a definite sum of money at a future date.

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Fair Value Measurements and Financial Instruments (Details 1) (USD $) In Millions, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014	Mar. 31, 2014	Dec. 31, 2013
Designated derivative instruments
Derivative Assets	$ 174us-gaap_DerivativeAssets	$ 94us-gaap_DerivativeAssets
Derivative Liabilities	19us-gaap_DerivativeLiabilities	7us-gaap_DerivativeLiabilities
Derivative Instruments Not Designated as Hedging Instruments [Abstract]
Derivative Instruments Not Designated as Hedging Instruments, Asset, at Fair Value	13	8
Derivative Instruments Not Designated as Hedging Instruments, Liability, at Fair Value	0	0
Total assets derivatives	187	102
Total liabilities derivatives	19	7
Financial Instruments, Owned, at Fair Value [Abstract]
Total other financial instruments	690us-gaap_InvestmentsFairValueDisclosure	564us-gaap_InvestmentsFairValueDisclosure
Bonds Issued By Venezuelan Government [Member]
Financial Instruments, Owned, at Fair Value [Abstract]
Available-for-sale Securities, Fair Value Disclosure	431	399	441	685
Other Current Assets [Member]
Financial Instruments, Owned, at Fair Value [Abstract]
Marketable Securities	250	200
Notes Receivable, Fair Value Disclosure	42	42
Other Current Assets [Member] \| Fair Value, Inputs, Level 2 [Member] \| Bonds Issued By Venezuelan Government [Member]
Financial Instruments, Owned, at Fair Value [Abstract]
Marketable Securities	33
Interest Rate Swap Contracts [Member] \| Other Current Assets [Member]
Designated derivative instruments
Derivative Assets	1	1
Interest Rate Swap Contracts [Member] \| Other accruals [Member]
Designated derivative instruments
Derivative Liabilities	0	0
Interest Rate Swap Contracts [Member] \| Other Assets [Member]
Designated derivative instruments
Derivative Assets	16	12
Interest Rate Swap Contracts [Member] \| Other Liabilities [Member]
Designated derivative instruments
Derivative Liabilities	0	2
Foreign Currency Contracts [Member] \| Other Current Assets [Member]
Designated derivative instruments
Derivative Assets	36	21
Foreign Currency Contracts [Member] \| Other accruals [Member]
Designated derivative instruments
Derivative Liabilities	18	4
Foreign Currency Contracts [Member] \| Other Assets [Member]
Designated derivative instruments
Derivative Assets	121	60
Derivative Instruments Not Designated as Hedging Instruments [Abstract]
Derivative Instruments Not Designated as Hedging Instruments, Asset, at Fair Value	13	8
Foreign Currency Contracts [Member] \| Other Liabilities [Member]
Designated derivative instruments
Derivative Liabilities	0	0
Derivative Instruments Not Designated as Hedging Instruments [Abstract]
Derivative Instruments Not Designated as Hedging Instruments, Liability, at Fair Value	0	0
Commodity Contracts [Member] \| Other Current Assets [Member]
Designated derivative instruments
Derivative Assets	0	0
Commodity Contracts [Member] \| Other accruals [Member]
Designated derivative instruments
Derivative Liabilities	1	1
Estimate of Fair Value Measurement [Member] \| Other Assets [Member] \| Fair Value, Inputs, Level 2 [Member] \| Bonds Issued By Venezuelan Government [Member]
Financial Instruments, Owned, at Fair Value [Abstract]
Available-for-sale Securities, Fair Value Disclosure	$ 398	$ 322