Debt and Credit Agreements - Activity Related to Long-Term Debt (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
Mar. 27, 2015
Movement, Debt Instruments [Roll Forward]
Beginning balance, current portion	$ 228
Beginning balance, long-term portion	9,514
Beginning balance, total	9,742us-gaap_DebtAndCapitalLeaseObligations
Discount, premium and other activity	(1)
Ending balance, current portion	228
Ending balance, long-term portion	9,513
Ending balance, total	9,741us-gaap_DebtAndCapitalLeaseObligations
Current Portion
Movement, Debt Instruments [Roll Forward]
Beginning balance, current portion	228
Discount, premium and other activity	0
Ending balance, current portion	228
Long-term Portion
Movement, Debt Instruments [Roll Forward]
Beginning balance, long-term portion	9,514
Discount, premium and other activity	(1)
Ending balance, long-term portion	$ 9,513

The component of interest expense representing the noncash expenses charged against earnings in the period to amortize debt discount and premium associated with the related debt instruments and other activity related to issuances and repayments. Excludes amortization of financing costs.

No definition available.

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- Definition

Sum of the carrying values as of the balance sheet date of all debt, including all short-term borrowings, long-term debt, and capital lease obligations.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.7-03.16)

-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.13,16)

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

+ Details

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Period Type:	instant

- Definition

Amount of long-term debt and capital lease obligation due after one year or beyond the normal operating cycle, if longer.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 6

-Section H

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- Definition

Amount of long-term debt and capital leases due within one year or the normal operating cycle, if longer.

+ References

+ Details

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