Assets and Liabilities Measured at Fair Value (Details) (USD $) In Millions, unless otherwise specified	Dec. 27, 2014	Sep. 27, 2014
Fair Value, Measurements, Recurring
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments	$ 84	$ 100
Other Liabilities	(198)	(198)
Total	683	444
Fair Value, Measurements, Recurring \| Interest rate
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative Asset	110	117
Derivative Liabilities	(62)	(75)
Fair Value, Measurements, Recurring \| Foreign exchange
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivatives assets	909	621
Derivatives Liability	(133)	(121)
Fair Value, Measurements, Recurring \| Other Derivative
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative Liabilities	(27)
Fair Value, Measurements, Recurring \| Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments	84	100
Other Liabilities	0	0
Total	84	100
Fair Value, Measurements, Recurring \| Level 1 \| Interest rate
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative Asset	0	0
Derivative Liabilities	0	0
Fair Value, Measurements, Recurring \| Level 1 \| Foreign exchange
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivatives assets	0	0
Derivatives Liability	0	0
Fair Value, Measurements, Recurring \| Level 1 \| Other Derivative
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative Liabilities	0
Fair Value, Measurements, Recurring \| Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments	0	0
Other Liabilities	0	0
Total	797	542
Fair Value, Measurements, Recurring \| Level 2 \| Interest rate
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative Asset	110	117
Derivative Liabilities	(62)	(75)
Fair Value, Measurements, Recurring \| Level 2 \| Foreign exchange
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivatives assets	909	621
Derivatives Liability	(133)	(121)
Fair Value, Measurements, Recurring \| Level 2 \| Other Derivative
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative Liabilities	(27)
Fair Value, Measurements, Recurring \| Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments	0	0
Other Liabilities	(198)	(198)
Total	(198)	(198)
Fair Value, Measurements, Recurring \| Level 3 \| Interest rate
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative Asset	0	0
Derivative Liabilities	0	0
Fair Value, Measurements, Recurring \| Level 3 \| Foreign exchange
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivatives assets	0	0
Derivatives Liability	0	0
Fair Value, Measurements, Recurring \| Level 3 \| Other Derivative
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative Liabilities	0
Estimate of Fair Value, Fair Value Disclosure [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Borrowings disclosed at fair value	17,105	15,275
Estimate of Fair Value, Fair Value Disclosure [Member] \| Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Borrowings disclosed at fair value	0	0
Estimate of Fair Value, Fair Value Disclosure [Member] \| Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Borrowings disclosed at fair value	16,259	14,374
Estimate of Fair Value, Fair Value Disclosure [Member] \| Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Borrowings disclosed at fair value	$ 846	$ 901

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-Publisher FASB

-Name Accounting Standards Codification

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+ References

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- Definition

Fair value portion of investment securities, including, but not limited to, marketable securities, derivative financial instruments, and investments accounted for under the equity method.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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-Publisher FASB

-Name Accounting Standards Codification

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 1

-Subparagraph a, f, g

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