Financing Arrangements Textuals Abstract.

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Percentage of principal amount of notes that may be paid upon occurrence of change in control triggering event.

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Warrants that expired in the period.

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Carrying value as of the balance sheet date of short-term borrowings using unsecured obligations issued by banks, corporations and other borrowers to investors. The maturities of these money market securities generally do not exceed 270 days.

+ References

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-Subparagraph (SX 210.9-03.13(2))

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Article 9

-Section 03

-Paragraph 13

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-Name Regulation S-X (SX)

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-Publisher SEC

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-Name Accounting Standards Codification

-Topic 210

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-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.19(a)(3))

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The carrying amount of the equity component of convertible debt which may be settled in cash upon conversion.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 470

-SubTopic 20

-Section 50

-Paragraph 4

-Subparagraph (a)

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-Publisher FASB

-Name FASB Staff Position (FSP)

-Number APB14-1

-Paragraph 31

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The stated principal amount of the debt instrument at time of issuance, which may vary from the carrying amount because of unamortized premium or discount.

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-Publisher AICPA

-Name Accounting Principles Board Opinion (APB)

-Number 21

-Paragraph 16, 20

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

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Interest rate stated in the contractual debt agreement.

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

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-Name Accounting Standards Codification

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-Subparagraph (SX 210.5-02.22(a)(1))

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The cash outflow paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt.

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-Publisher FASB

-Name Emerging Issues Task Force (EITF)

-Number 95-13

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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-Publisher FASB

-Name Accounting Standards Codification

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The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

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-Publisher FASB

-Name Accounting Standards Codification

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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-Name Accounting Standards Codification

-Glossary Financing Activities

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Reflects the calculation as of the balance sheet date of the average interest rate weighted by the amount of short-term debt outstanding by type or by instrument at that time.

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-Publisher SEC

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Financing arrangements (Details Textuals) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Dec. 31, 2010
Financing arrangements (Textuals) [Abstract]
Repayment of debt	$ 2,500	$ 0
Debt issuance cost	17
Commercial paper borrowings	300		0
Annual effective weighted-average interest rate on commercial paper borrowings	0.3075%
0.125% convertible notes due 2011 (2011 Convertible notes) [Member]
Financing arrangements (Textuals) [Abstract]
Stated contractual interest rate on note			0.125%
Repayment of debt	2,500
Original debt discount	643
0.375% convertible notes due 2013 (2013 Convertible notes) [Member]
Financing arrangements (Textuals) [Abstract]
Stated contractual interest rate on note	0.375%		0.375%
4.85% notes due 2014 (2014 Notes) [Member]
Financing arrangements (Textuals) [Abstract]
Stated contractual interest rate on note	4.85%		4.85%
2.30% notes due 2016 (2016 Notes) [Member]
Financing arrangements (Textuals) [Abstract]
Stated contractual interest rate on note	2.30%
Principal Amount of Notes Issued	750
Percentage of principal amount of notes that may be paid upon the occurrence of a change in control triggering event	101.00%
5.85% notes due 2017 (2017 Notes) [Member]
Financing arrangements (Textuals) [Abstract]
Stated contractual interest rate on note	5.85%		5.85%
6.15% notes due 2018 (2018 Notes) [Member]
Financing arrangements (Textuals) [Abstract]
Stated contractual interest rate on note	6.15%		6.15%
5.70% notes due 2019 (2019 Notes) [Member]
Financing arrangements (Textuals) [Abstract]
Stated contractual interest rate on note	5.70%		5.70%
4.50% notes due March 2020 (March 2020 Notes) [Member]
Financing arrangements (Textuals) [Abstract]
Stated contractual interest rate on note	4.50%		4.50%
3.45% notes due October 2020 (October 2020 Notes) [Member]
Financing arrangements (Textuals) [Abstract]
Stated contractual interest rate on note	3.45%		3.45%
4.10% notes due 2021 (2021 Notes) [Member]
Financing arrangements (Textuals) [Abstract]
Stated contractual interest rate on note	4.10%
Principal Amount of Notes Issued	1,000
Percentage of principal amount of notes that may be paid upon the occurrence of a change in control triggering event	101.00%
6.375% notes due 2037 (2037 Notes) [Member]
Financing arrangements (Textuals) [Abstract]
Stated contractual interest rate on note	6.375%		6.375%
6.90% notes due 2038 (2038 Notes) [Member]
Financing arrangements (Textuals) [Abstract]
Stated contractual interest rate on note	6.90%		6.90%
6.40% notes due 2039 (2039 Notes) [Member]
Financing arrangements (Textuals) [Abstract]
Stated contractual interest rate on note	6.40%		6.40%
5.75% notes due 2040 (2040 Notes) [Member]
Financing arrangements (Textuals) [Abstract]
Stated contractual interest rate on note	5.75%		5.75%
4.95% notes due 2041 (2041 Notes) [Member]
Financing arrangements (Textuals) [Abstract]
Stated contractual interest rate on note	4.95%		4.95%
5.65% notes due 2042 (2042 Notes) [Member]
Financing arrangements (Textuals) [Abstract]
Stated contractual interest rate on note	5.65%
Principal Amount of Notes Issued	$ 1,250
Percentage of principal amount of notes that may be paid upon the occurrence of a change in control triggering event	101.00%
Warrants issued concurrent with issuance of 2011 convertible debt [Member]
Financing arrangements (Textuals) [Abstract]
Warrants to acquire shares of our common stock, expired	31.3