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Contingencies - Additional Information (Detail) (USD $)
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1 Months Ended | ||
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Jun. 30, 2014
Antitrust, Unfair Competition, And Overcharge Class Actions
United States
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Jun. 30, 2014
Contingencies Disclosed in Contingencies Note
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Sep. 30, 2013
Patent And Intellectual Property Claims
US State District Court
Microsoft, Plaintiff
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| Loss Contingencies [Line Items] | |||
| Accrual for loss contingency, ending balance | $ 400,000,000 | ||
| Damages awarded value | 14,500,000 | ||
| Accrual for disclosed loss contingencies, current, ending balance | 780,000,000 | ||
| Accrual for disclosed loss contingencies, noncurrent, ending balance | 81,000,000 | ||
| Amount not accrued for estimated maximum losses for disclosed loss contingencies | $ 2,000,000,000 | ||