Sale Of Equipment Installment Receivables (Finance Receivables) (Finance Receivables Net [Member], USD $) In Millions, unless otherwise specified	3 Months Ended	9 Months Ended
Sep. 30, 2014	Sep. 30, 2014
Finance Receivables Net [Member]
Changes In Other Assets [Line Items]
Net receivables sold	$ 885	$ 2,276
Cash proceeds received	556	1,375
Deferred purchase price recorded	$ 324	$ 889

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Amount of significant additions in the period in other assets (current, noncurrent, or unclassified).

+ 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 210.5-02.17)

-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 17

-Article 5

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- Definition

The cash inflow associated with the sale of receivables arising from the financing of goods and services.

+ References

No definition available.

+ Details

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- Definition

Amount of significant reductions in the period of other assets (current, noncurrent, or unclassified).

+ References

+ Details

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