Significant Transactions Schedule of estimated fair value of the consideration transferred after Acquisition (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	6 Months Ended
Jul. 09, 2013	Jul. 08, 2013
Business Acquisition, Contingent Consideration [Line Items]
Estimated value per share of acquirer's previously-held equity interests		$ 4.40
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable	$ 47
Clearwire Acquisition [Member]
Business Acquisition, Contingent Consideration [Line Items]
Payments to Acquire Equity Method Investments	3,681
Estimated value of acquirer's previously-held equity interests		3,251
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable	59
Business Combination, Consideration Transferred	$ 6,991

Business combination, step acquisition, equity interest in acquiree, fair value amount

No definition available.

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- Definition

Estimated previously held equity interest per share, discounted

+ References

No definition available.

+ Details

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- Details

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- Definition

Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 30

-Section 30

-Paragraph 7

-URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6578-128477

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 30

-Section 30

-Paragraph 8

-URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6613-128477

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 30

-Section 50

-Paragraph 1

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=7488404&loc=d3e6927-128479

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- Definition

Amount of equity interests of the acquirer, including instruments or interests issued or issuable in consideration for the business combination.

+ References

+ Details

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- Definition

The cash outflow associated with the purchase of or advances to an equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 13

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3213-108585

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