Debt and Financing Arrangements (Details 1) (USD $) In Millions	Sep. 30, 2011	Sep. 30, 2010
Unsecured notes
Capital lease obligations	$ 70	$ 34
Other	11	13
Gross long-term debt	4,550	3,314
Less: current portion	17	662
Net long-term debt	4,533	2,652
5.25% due in 2011 [Member]
Unsecured notes
Gross long-term debt		655
5.8% due in 2013 [Member]
Unsecured notes
Gross long-term debt	101	102
4.875% due in 2013 [Member]
Unsecured notes
Gross long-term debt	321	327
Floating rate senior unsecured notes due 2014 [Member]
Unsecured notes
Gross long-term debt	350
1.75% unsecured fixed rate notes due 2014 [Member]
Unsecured notes
Gross long-term debt	462
7.7% due in 2015 [Member]
Unsecured notes
Gross long-term debt	125	125
5.5% due in 2016 [Member]
Unsecured notes
Gross long-term debt	800	800
7.125% due in 2017 [Member]
Unsecured notes
Gross long-term debt	164	167
5.0% senior unsecured fixed rate notes due 2020 [Member]
Unsecured notes
Gross long-term debt	498	498
4.25% senior unsecured fixed rate notes due 2021 [Member]
Unsecured notes
Gross long-term debt	497
6.0% due in 2036 [Member]
Unsecured notes
Gross long-term debt	395	395
5.7% senior unsecured fixed rate notes due 2041 [Member]
Unsecured notes
Gross long-term debt	299
11.5% due in 2042 [Member]
Unsecured notes
Gross long-term debt	38	46
11.5% notes due in 2042 [Member]
Unsecured notes
Gross long-term debt	8
6.95% due in 2046 [Member]
Unsecured notes
Gross long-term debt	125	125
Euro [Member]
Unsecured notes
Gross long-term debt	$ 286	$ 27

Long term debt and capital lease obligations gross.

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Other long term debt not specified elsewhere.

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Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal through the balance sheet date.

+ References

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-Publisher SEC

-Name Regulation S-X (SX)

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Including current and noncurrent portions, aggregate carrying amount of long-term borrowings as of the balance sheet date. May include notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, which had initial maturities beyond one year or beyond the normal operating cycle, if longer, and after deducting unamortized discount or premiums, if any.

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Sum of the carrying values as of the balance sheet date of all long-term debt, which is debt initially having maturities due after one year from the balance sheet date or beyond the operating cycle, if longer, but excluding the portions thereof scheduled to be repaid within one year or the normal operating cycle, if longer plus capital lease obligations due to be paid more than one year after the balance sheet date.

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Obligation related to long-term debt (excluding convertible debt) and capital leases, the portion which is due in one year or less in the future.

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