Fair Value (Details) (USD $) In Millions	Jun. 30, 2011	Dec. 31, 2010
Financial assets and financial liabilities measured at fair value on a recurring basis:
Cash and cash equivalents	$ 8,994	$ 7,801
Debt securities - current	50	990
Debt securities - noncurrent	8	7
Available-for-sale equity investments	59	458
Potential reduction in net position of total derivative liabilities	348	475
Level 1 \| Money market funds \| Recurring
Financial assets and financial liabilities measured at fair value on a recurring basis:
Cash and cash equivalents	2,624	1,532
Level 1 \| Recurring
Financial assets and financial liabilities measured at fair value on a recurring basis:
Cash and cash equivalents	2,624	1,532
Debt securities - noncurrent	1	1
Available-for-sale equity investments	38	445
Total Assets	2,663	1,978
Level 2 \| Time deposits and certificates of deposit \| Recurring
Financial assets and financial liabilities measured at fair value on a recurring basis:
Cash and cash equivalents	4,975	2,473
Level 2 \| Commercial paper \| Recurring
Financial assets and financial liabilities measured at fair value on a recurring basis:
Cash and cash equivalents	1,322	2,673
Debt securities - current	50	490
Level 2 \| Foreign government securities \| Recurring
Financial assets and financial liabilities measured at fair value on a recurring basis:
Cash and cash equivalents		1,054
Level 2 \| U.S. government securities \| Recurring
Financial assets and financial liabilities measured at fair value on a recurring basis:
Cash and cash equivalents		44
Debt securities - current		500
Level 2 \| U.S. government agency securities \| Recurring
Financial assets and financial liabilities measured at fair value on a recurring basis:
Cash and cash equivalents		22
Level 2 \| Other securities \| Recurring
Financial assets and financial liabilities measured at fair value on a recurring basis:
Cash and cash equivalents	72	3
Debt securities - current		1
Level 2 \| Interest rate contracts \| Recurring
Financial assets and financial liabilities measured at fair value on a recurring basis:
Derivative assets	535	548
Level 2 \| Foreign exchange contracts \| Recurring
Financial assets and financial liabilities measured at fair value on a recurring basis:
Derivative assets	246	539
Derivative liabilities	897	1,003
Level 2 \| Equity contracts \| Recurring
Financial assets and financial liabilities measured at fair value on a recurring basis:
Derivative assets	22	12
Derivative liabilities	1	3
Level 2 \| Recurring
Financial assets and financial liabilities measured at fair value on a recurring basis:
Cash and cash equivalents	6,369	6,269
Debt securities - current	50	990
Debt securities - noncurrent	7	6
Available-for-sale equity investments	22	13
Derivative assets	803	1,099
Total Assets	7,251	8,377
Total Liabilities	898	1,006
Total fair value \| Time deposits and certificates of deposit \| Recurring
Financial assets and financial liabilities measured at fair value on a recurring basis:
Cash and cash equivalents	4,975	2,473
Total fair value \| Commercial paper \| Recurring
Financial assets and financial liabilities measured at fair value on a recurring basis:
Cash and cash equivalents	1,322	2,673
Debt securities - current	50	490
Total fair value \| Money market funds \| Recurring
Financial assets and financial liabilities measured at fair value on a recurring basis:
Cash and cash equivalents	2,624	1,532
Total fair value \| Foreign government securities \| Recurring
Financial assets and financial liabilities measured at fair value on a recurring basis:
Cash and cash equivalents		1,054
Total fair value \| U.S. government securities \| Recurring
Financial assets and financial liabilities measured at fair value on a recurring basis:
Cash and cash equivalents		44
Debt securities - current		500
Total fair value \| U.S. government agency securities \| Recurring
Financial assets and financial liabilities measured at fair value on a recurring basis:
Cash and cash equivalents		22
Total fair value \| Other securities \| Recurring
Financial assets and financial liabilities measured at fair value on a recurring basis:
Cash and cash equivalents	72	3
Debt securities - current		1
Total fair value \| Interest rate contracts \| Recurring
Financial assets and financial liabilities measured at fair value on a recurring basis:
Derivative assets	535	548
Total fair value \| Foreign exchange contracts \| Recurring
Financial assets and financial liabilities measured at fair value on a recurring basis:
Derivative assets	246	539
Derivative liabilities	897	1,003
Total fair value \| Equity contracts \| Recurring
Financial assets and financial liabilities measured at fair value on a recurring basis:
Derivative assets	22	12
Derivative liabilities	1	3
Total fair value \| Recurring
Financial assets and financial liabilities measured at fair value on a recurring basis:
Cash and cash equivalents	8,994	7,801
Debt securities - current	50	990
Debt securities - noncurrent	8	7
Available-for-sale equity investments	59	458
Derivative assets	803	1,099
Total Assets	9,914	10,355
Total Liabilities	898	1,006
Potential reduction in net position of total derivative assets	348	475
Potential reduction in net position of total derivative liabilities	348	475
Time deposits and certificates of deposit
Financial assets and financial liabilities measured at fair value on a recurring basis:
Cash and cash equivalents	4,975	2,473
Commercial paper
Financial assets and financial liabilities measured at fair value on a recurring basis:
Cash and cash equivalents	1,322	2,673
Debt securities - current	50	490
Money market funds
Financial assets and financial liabilities measured at fair value on a recurring basis:
Cash and cash equivalents	2,624	1,532
Foreign government securities
Financial assets and financial liabilities measured at fair value on a recurring basis:
Cash and cash equivalents		1,054
U.S. government securities
Financial assets and financial liabilities measured at fair value on a recurring basis:
Cash and cash equivalents		44
Debt securities - current		500
U.S. government agency securities
Financial assets and financial liabilities measured at fair value on a recurring basis:
Cash and cash equivalents		22
Other securities
Financial assets and financial liabilities measured at fair value on a recurring basis:
Cash and cash equivalents	72	3
Debt securities - current		1
Debt securities - noncurrent	8	7
Recurring \| Prepaid expenses and other current assets
Financial assets and financial liabilities measured at fair value on a recurring basis:
Derivative assets	231	511
Recurring \| Investments and other sundry assets
Financial assets and financial liabilities measured at fair value on a recurring basis:
Derivative assets	572	588
Recurring \| Other accrued expenses and liabilities
Financial assets and financial liabilities measured at fair value on a recurring basis:
Derivative liabilities	824	871
Recurring \| Other liabilities.
Financial assets and financial liabilities measured at fair value on a recurring basis:
Derivative liabilities	$ 74	$ 135

This element represents the fair value of available-for-sale debt securities which mature within one year.

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This element represents the aggregate of the assets reported on the balance sheet at period end measured at fair value by the entity. This element is intended to be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements.

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This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Company may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Fair values as of the balance sheet date of all assets resulting from contracts that meet the criteria of being accounted for as derivative instruments, net of the effects of master netting arrangements.

+ References

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- Definition

The amount as of the balance sheet date of the fair value of derivative assets that in accordance with the entity's accounting policy was not offset against an obligation to return cash collateral under a master netting arrangement.

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The amount as of the balance sheet date of the fair value of derivative liabilities that in accordance with the entity's accounting policy was not offset against the right to reclaim cash collateral under a master netting arrangement.

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- Definition

Derivative instrument obligations meeting the definition of a liability which the Company is a party to as of the balance sheet date.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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This element represents the aggregate of the liabilities reported on the balance sheet at period end measured at fair value by the entity. This element is intended to be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements.

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