Financial Instruments (Details 1) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2014		Dec. 31, 2013
Financial Instruments:
Impairments of non-financial assets	$ 0
Financial assets and financial liabilities measured at fair value on a recurring basis:
Debt securities - noncurrent		9	[1]	9	[1]
Available-for-sale equity investments		7	[1]	18	[1]
Derivative assets		1,153		719
Potential reduction in net position of total derivative liabilities		128		251
Trading securities investments
Financial assets and financial liabilities measured at fair value on a recurring basis:
Fair value assets, Level 2 to Level 1 transfer		61
Recurring
Financial assets and financial liabilities measured at fair value on a recurring basis:
Cash equivalents		7,423	[2],[3]	7,997	[2],[3]
Debt securities - current		4	[2],[4]	350	[2],[4]
Debt securities - noncurrent		9	[1]	9	[1]
Trading securities investments		61	[1]
Available-for-sale equity investments		7	[1]	18	[1]
Derivative assets		1,153	[5],[6]	719	[7],[8]
Total Assets		8,658	[5]	9,092	[7]
Total Liabilities		322	[5]	501	[7]
Potential reduction in net position of total derivative assets		128		251
Potential reduction in net position of total derivative liabilities		128		251
Recurring | Prepaid expenses and other current assets
Financial assets and financial liabilities measured at fair value on a recurring basis:
Derivative assets		638		318
Recurring | Investments and sundry assets
Financial assets and financial liabilities measured at fair value on a recurring basis:
Derivative assets		515		401
Recurring | Other accrued expenses and liabilities
Financial assets and financial liabilities measured at fair value on a recurring basis:
Derivative liabilities		284		375
Recurring | Other liabilities
Financial assets and financial liabilities measured at fair value on a recurring basis:
Derivative liabilities		38		126
Recurring | Interest rate contracts
Financial assets and financial liabilities measured at fair value on a recurring basis:
Derivative assets		465	[6]	308	[8]
Derivative liabilities		7	[9]	13	[10]
Recurring | Foreign exchange contracts
Financial assets and financial liabilities measured at fair value on a recurring basis:
Derivative assets		684	[6]	375	[8]
Derivative liabilities		287	[9]	484	[10]
Recurring | Equity contracts
Financial assets and financial liabilities measured at fair value on a recurring basis:
Derivative assets		4	[6]	36	[8]
Derivative liabilities		28	[9]	4	[10]
Recurring | Time deposits and certificates of deposit
Financial assets and financial liabilities measured at fair value on a recurring basis:
Cash equivalents		5,518	[3]	4,754	[3]
Recurring | Commercial paper
Financial assets and financial liabilities measured at fair value on a recurring basis:
Cash equivalents		382	[3]	1,507	[3]
Recurring | Money market funds
Financial assets and financial liabilities measured at fair value on a recurring basis:
Cash equivalents		1,266	[3]	1,728	[3]
Recurring | U.S. government securities
Financial assets and financial liabilities measured at fair value on a recurring basis:
Cash equivalents		250	[3]
Recurring | Other securities
Financial assets and financial liabilities measured at fair value on a recurring basis:
Cash equivalents		7	[3]	8	[3]
Recurring | Level 1
Financial assets and financial liabilities measured at fair value on a recurring basis:
Cash equivalents		1,266	[2],[3]	1,728	[2],[3]
Debt securities - noncurrent		1	[1]	1	[1]
Trading securities investments		61	[1]
Available-for-sale equity investments		7	[1]	18	[1]
Total Assets		1,336	[5]	1,747	[7]
Recurring | Level 1 | Money market funds
Financial assets and financial liabilities measured at fair value on a recurring basis:
Cash equivalents		1,266	[3]	1,728	[3]
Recurring | Level 2
Financial assets and financial liabilities measured at fair value on a recurring basis:
Cash equivalents		6,157	[2],[3]	6,269	[2],[3]
Debt securities - current		4	[2],[4]	350	[2],[4]
Debt securities - noncurrent		8	[1]	7	[1]
Derivative assets		1,153	[5],[6]	719	[7],[8]
Total Assets		7,322	[5]	7,345	[7]
Total Liabilities		322	[5]	501	[7]
Recurring | Level 2 | Interest rate contracts
Financial assets and financial liabilities measured at fair value on a recurring basis:
Derivative assets		465	[6]	308	[8]
Derivative liabilities		7	[9]	13	[10]
Recurring | Level 2 | Foreign exchange contracts
Financial assets and financial liabilities measured at fair value on a recurring basis:
Derivative assets		684	[6]	375	[8]
Derivative liabilities		287	[9]	484	[10]
Recurring | Level 2 | Equity contracts
Financial assets and financial liabilities measured at fair value on a recurring basis:
Derivative assets		4	[6]	36	[8]
Derivative liabilities		28	[9]	4	[10]
Recurring | Level 2 | Time deposits and certificates of deposit
Financial assets and financial liabilities measured at fair value on a recurring basis:
Cash equivalents		5,518	[3]	4,754	[3]
Recurring | Level 2 | Commercial paper
Financial assets and financial liabilities measured at fair value on a recurring basis:
Cash equivalents		382	[3]	1,507	[3]
Recurring | Level 2 | U.S. government securities
Financial assets and financial liabilities measured at fair value on a recurring basis:
Cash equivalents		250	[3]
Recurring | Level 2 | Other securities
Financial assets and financial liabilities measured at fair value on a recurring basis:
Cash equivalents		$ 7	[3]	$ 8	[3]

[1] Included within investments and sundry assets in the Consolidated Statement of Financial Position.

[2] Available-for-sale securities with carrying values that approximate fair value.

[3] Included within cash and cash equivalents in the Consolidated Statement of Financial Position

[4] Commercial paper and certificates of deposit reported as marketable securities in the Consolidated Statement of Financial Position.

[5] If derivative exposures covered by a qualifying master netting agreement had been netted in the Consolidated Statement of Financial Position, the total derivative asset and liability positions would have been reduced by $128 million each.

[6] The gross balances of derivative assets contained within prepaid expenses and other current assets, and investments and sundry assets in the Consolidated Statement of Financial Position at September 30, 2014 were $638 million and $515 million respectively.

[7] If derivative exposures covered by a qualifying master netting agreement had been netted in the Consolidated Statement of Financial Position, the total derivative asset and liability positions would have been reduced by $251 million each.

[8] The gross balances of derivative assets contained within prepaid expenses and other current assets, and investments and sundry assets in the Consolidated Statement of Financial Position at December 31, 2013 were $318 million and $401 million, respectively.

[9] The gross balances of derivative liabilities contained within other accrued expenses and liabilities, and other Liabilities in the Consolidated Statement of Financial Position at September 30, 2014 were $284 million and $38 million, respectively.

[10] The gross balances of derivative liabilities contained within other accrued expenses and liabilities, and other liabilities in the Consolidated Statement of Financial Position at December 31, 2013 were $375 million and $126 million, respectively.