Debt (Details) (USD $)	3 Months Ended	6 Months Ended
Jun. 29, 2012	Sep. 28, 2012
Debt Instrument [Line Items]
Senior Notes	$ 1,000,000,000
Aggregate fair value of senior notes		1,020,000,000
Proceeds from issuance of senior notes	1,000,000,000
Unamortized discount	4,000,000
Debt issuance costs		7,000,000
Credit facility amount outstanding		0
Line of credit facility, expiration date	2017-06-07
2.75% Senior Notes [Member]
Debt Instrument [Line Items]
Senior Notes	600,000,000
Stated interest rate	2.75%
Maturity date	Jun. 15, 2017
3.95% Senior Notes [Member]
Debt Instrument [Line Items]
Senior Notes	400,000,000
Stated interest rate	3.95%
Maturity date	Jun. 15, 2022
Senior Notes [Member]
Debt Instrument [Line Items]
Debt issuance costs	$ 6,000,000

Aggregate Fair Value Of Senior Notes

No definition available.

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- Definition

Expiration Date Line Of Credit Facility

+ References

No definition available.

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- Definition

Interest rate stated in the contractual debt agreement.

+ References

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- Definition

Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22(a)(2))

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-Name Statement of Financial Accounting Standard (FAS)

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-Paragraph 2, 4

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- Definition

The amount of debt discount that was originally recognized at the issuance of the instrument that has yet to be amortized.

+ References

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-Publisher AICPA

-Name Accounting Principles Board Opinion (APB)

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- Definition

Amount borrowed under the credit facility as of the balance sheet date.

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

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- Definition

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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- Definition

The cash inflow from the issuance of long-term debt that is not secured by collateral. Excludes proceeds from tax exempt unsecured debt.

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-Glossary Financing Activities

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Including the current and noncurrent portions, carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer). Senior note holders are paid off in full before any payments are made to junior note holders.

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-Subparagraph (SX 210.7-03.16(a))

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