Capital and Treasury Stock - Changes in Treasury Stock (Details) - USD ($) shares in Thousands, $ in Millions	12 Months Ended
Jan. 01, 2017	Jan. 03, 2016	Dec. 28, 2014
Changes in Treasury Stock Shares Outstanding [Roll Forward]
Treasury Stock, Balance, Shares	364,681	336,620	299,215
Employee compensation and stock option plans, Shares	(30,839)	(24,413)	(32,302)
Treasury Stock, Ending Balance, Shares	413,332	364,681	336,620
Changes in treasury stock
Treasury Stock, Balance	$ 22,684	$ 19,891	$ 15,700
Employee compensation and stock option plans related to treasury stock	(3,311)	(2,497)	(2,933)
Repurchase of common stock, Amounts	8,979	5,290	7,124
Treasury Stock, Ending Balance	$ 28,352	$ 22,684	$ 19,891
Treasury Stock
Changes in Treasury Stock Shares Outstanding [Roll Forward]
Repurchase of common stock, Shares	79,490	52,474	69,707
Changes in treasury stock
Repurchase of common stock, Amounts	$ 8,979	$ 5,290	$ 7,124

Changes in treasury stock.

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Changes in Treasury Stock Shares Outstanding [Roll Forward]

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Number of shares of stock issued during the period that is attributable to transactions involving issuance of stock not separately disclosed.

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No definition available.

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Value of shares of stock issued during the period that is attributable to transactions involving issuance of stock not separately disclosed.

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- Definition

Number of common and preferred shares that were previously issued and that were repurchased by the issuing entity and held in treasury on the financial statement date. This stock has no voting rights and receives no dividends.

+ 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 210.5-02.28,29)
-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 29, 30
-Article 5

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Number of shares that have been repurchased during the period and are being held in treasury.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644

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-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 29, 30
-Article 5

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 04
-Article 3

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The amount allocated to treasury stock. Treasury stock is common and preferred shares of an entity that were issued, repurchased by the entity, and are held in its treasury.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 30
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=6405834&loc=d3e23315-112656

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Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 30
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6405813&loc=d3e23239-112655

Reference 3: 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)
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

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