This element represents the amortization period of capitalized software development costs.

No definition available.

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- Definition

This element represents the maximum contractual term for foreign exchange forward contracts.

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No definition available.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

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- References

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Amount of cash and cash equivalents restricted as to withdrawal or usage, classified as noncurrent. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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- References

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Summary of Significant Accounting Policies (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Cash in Escrow
Deposit for acquisition			$ 3,560
Financial Instruments
Maximum contractual terms of foreign exchange forward contracts	1 year
Apple \| Consolidated net revenues
Concentration Risk [Line Items]
Percentage of concentration risk	16.00%	13.00%
Apple \| Consolidated gross receivables
Concentration Risk [Line Items]
Percentage of concentration risk	10.00%
Sony \| Consolidated net revenues
Concentration Risk [Line Items]
Percentage of concentration risk	14.00%	13.00%	12.00%
Sony \| Consolidated gross receivables
Concentration Risk [Line Items]
Percentage of concentration risk	17.00%	17.00%
Google \| Consolidated net revenues
Concentration Risk [Line Items]
Percentage of concentration risk	10.00%
Microsoft \| Consolidated net revenues
Concentration Risk [Line Items]
Percentage of concentration risk			10.00%
Microsoft \| Consolidated gross receivables
Concentration Risk [Line Items]
Percentage of concentration risk	14.00%	10.00%
Wal-Mart \| Consolidated gross receivables
Concentration Risk [Line Items]
Percentage of concentration risk		10.00%
Minimum
Property, Plant and Equipment [Line Items]
Amortization period for capitalized software development costs	6 months
Maximum
Property, Plant and Equipment [Line Items]
Amortization period for capitalized software development costs	2 years