Decrease in noncontrolling interest (for example, but not limited to, redeeming or purchasing the interests of noncontrolling shareholders, issuance of shares (interests) by the non-wholly owned subsidiary to the parent entity for other than cash, and a buyback of shares (interest) by the non-wholly owned subsidiary from the noncontrolling interests).

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.3-04)

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 810

-SubTopic 10

-Section 45

-Paragraph 23

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-Name Accounting Standards Codification

-Topic 810

-SubTopic 10

-Section 45

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The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

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- Definition

Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3

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

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-Name Accounting Standards Codification

-Topic 505

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-Section 50

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-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 29, 30

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Equity impact of the value of stock that has been repurchased during the period and has not been retired and is not held in treasury. Some state laws may mandate the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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Amount of stock repurchase plan authorized.

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Total cost of shares repurchased divided by the total number of shares repurchased.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 30

-Section 45

-Paragraph 1

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Accumulated Other Comprehensive Income and Supplemental Equity Information (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
	Apr. 04, 2015	Mar. 29, 2014	Jul. 04, 2015	Jan. 13, 2015	Jun. 07, 2013
Stock Repurchase Program, Authorized Amount				$ 500
Stock Repurchased During Period, Shares	7.5
Stock Repurchased During Period, Value	500	434
Treasury Stock Acquired, Average Cost Per Share	$ 66.96
Spinal Modulation [Member]
Noncontrolling Interest, Ownership Percentage by Parent					19.00%
Subsequent Event \| Spinal Modulation [Member]
Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests			$ 175
Noncontrolling Interest, Ownership Percentage by Parent			81.00%