Property, Plant and Equipment (Schedule of Leases Receivable by Year) (Details) (USD $) In Millions, unless otherwise specified	Mar. 31, 2015
Property, Plant and Equipment [Line Items]
Fiscal year 2015	$ 740
Fiscal year 2016	505
Fiscal year 2017	1
Fiscal year 2018 and thereafter	0
Estimated payments to be received for leased devices	$ 1,246

Future minimum rental payments in aggregate as of the balance sheet date under operating leases.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 840

-SubTopic 20

-Section 50

-Paragraph 4

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6454179&loc=d3e41551-112718

+ Details

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Balance Type:	debit
Period Type:	instant

- Definition

Future rental payments receivable within one year of the balance sheet date under an operating lease.

+ References

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- Definition

Future rental payments receivable within the third year from the balance sheet date under an operating lease.

+ References

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Namespace Prefix:	us-gaap_
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- Definition

Future rental payments receivable within the second year from the balance sheet date under an operating lease.

+ References

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- Definition

Future minimum lease payments receivable under operating leases for periods greater than five years following the balance sheet date.

+ References

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