Fair Value Measurements (Details) (USD $) In Millions	Sep. 30, 2011	Dec. 31, 2010
Financial assets and financial liabilities measured at fair value on a recurring basis:
Cash and cash equivalents	$ 7,864	$ 7,801
Debt securities - current		990
Debt securities - noncurrent	8	7
Available-for-sale equity investments	74	458
Potential reduction in net position of total derivative liabilities	336	475
Level 1 \| Money market funds \| Recurring
Financial assets and financial liabilities measured at fair value on a recurring basis:
Cash and cash equivalents	319	1,532
Level 1 \| Recurring
Financial assets and financial liabilities measured at fair value on a recurring basis:
Cash and cash equivalents	319	1,532
Debt securities - noncurrent	1	1
Available-for-sale equity investments	61	445
Total Assets	381	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	3,602	2,473
Level 2 \| Commercial paper \| Recurring
Financial assets and financial liabilities measured at fair value on a recurring basis:
Cash and cash equivalents	2,794	2,673
Debt securities - current		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	1,110	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	40	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	895	548
Level 2 \| Foreign exchange contracts \| Recurring
Financial assets and financial liabilities measured at fair value on a recurring basis:
Derivative assets	489	539
Derivative liabilities	535	1,003
Level 2 \| Equity contracts \| Recurring
Financial assets and financial liabilities measured at fair value on a recurring basis:
Derivative assets	7	12
Derivative liabilities	25	3
Level 2 \| Recurring
Financial assets and financial liabilities measured at fair value on a recurring basis:
Cash and cash equivalents	7,545	6,269
Debt securities - current		990
Debt securities - noncurrent	7	6
Available-for-sale equity investments	13	13
Derivative assets	1,391	1,099
Total Assets	8,956	8,377
Total Liabilities	560	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	3,602	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	2,794	2,673
Debt securities - current		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	319	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	1,110	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	40	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	895	548
Total fair value \| Foreign exchange contracts \| Recurring
Financial assets and financial liabilities measured at fair value on a recurring basis:
Derivative assets	489	539
Derivative liabilities	535	1,003
Total fair value \| Equity contracts \| Recurring
Financial assets and financial liabilities measured at fair value on a recurring basis:
Derivative assets	7	12
Derivative liabilities	25	3
Total fair value \| Recurring
Financial assets and financial liabilities measured at fair value on a recurring basis:
Cash and cash equivalents	7,864	7,801
Debt securities - current		990
Debt securities - noncurrent	8	7
Available-for-sale equity investments	74	458
Derivative assets	1,391	1,099
Total Assets	9,337	10,355
Total Liabilities	560	1,006
Potential reduction in net position of total derivative assets	336	475
Potential reduction in net position of total derivative liabilities	336	475
Time deposits and certificates of deposit
Financial assets and financial liabilities measured at fair value on a recurring basis:
Cash and cash equivalents	3,602	2,473
Commercial paper
Financial assets and financial liabilities measured at fair value on a recurring basis:
Cash and cash equivalents	2,794	2,673
Debt securities - current		490
Money market funds
Financial assets and financial liabilities measured at fair value on a recurring basis:
Cash and cash equivalents	319	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	1,110	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	40	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	492	511
Recurring \| Investments and other sundry assets
Financial assets and financial liabilities measured at fair value on a recurring basis:
Derivative assets	900	588
Recurring \| Other accrued expenses and liabilities
Financial assets and financial liabilities measured at fair value on a recurring basis:
Derivative liabilities	447	871
Recurring \| Other liabilities.
Financial assets and financial liabilities measured at fair value on a recurring basis:
Derivative liabilities	$ 112	$ 135

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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.

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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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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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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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