Commitments And Contingent Liabilities (Future Minimum Commitments Under Existing Non-Cancelable Operating Leases And Purchase Obligations) (Details) (USD $)	Dec. 31, 2014
Commitments and Contingencies Disclosure [Abstract]
Lease obligations, 2015	$ 142,000,000
Lease obligations, 2016	106,000,000
Lease obligations, 2017	84,000,000
Lease obligations, 2018	63,000,000
Lease obligations, 2019	45,000,000
Lease obligations, Thereafter	91,000,000
Purchase obligations, 2015	3,266,000,000
Purchase obligations, 2016	761,000,000
Purchase obligations, 2017	583,000,000
Purchase obligations, 2018	463,000,000
Purchase obligations, 2019	422,000,000
Purchase obligations, Thereafter	1,690,000,000
Contractual Obligation, Due in Next Twelve Months	3,408,000,000
Total, 2015	867,000,000
Total, 2016	667,000,000
Total, 2017	526,000,000
Total, 2018	467,000,000
Total, Thereafter	1,781,000,000
Fiber supply agreements	$ 2,300,000,000

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Amount of contractual obligation maturing in the fifth fiscal year following the latest fiscal year.

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Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 840

-SubTopic 20

-Section 50

-Paragraph 2

-Subparagraph (a)

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

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-Topic 840

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Amount of the recorded obligation to transfer funds in the future for fixed or minimum amounts or quantities of goods or services at fixed or minimum prices (for example, as in take-or-pay contracts or throughput contracts).

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

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Amount of the recorded unconditional purchase obligation maturing after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of the recorded unconditional purchase obligation maturing in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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