Organization And Summary Of Significant Accounting Policies [Line Items]

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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.

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- Definition

Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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- Definition

The total expense recognized in the period for promotion, public relations, and brand or product advertising.

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- Definition

Present value of lessee's discounted obligation for lease payments from operating lease.

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Amount of lessee's right to use underlying asset under operating lease.

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Amount of liabilities classified as other, due after one year or the normal operating cycle, if longer.

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Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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Nature of Operations and Summary of Significant Accounting Policies (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Jan. 01, 2019
Organization And Summary Of Significant Accounting Policies [Line Items]
Impairment of goodwill	$ 0	$ 0	$ 0
Advertising and promotional expenses	6,800	6,400	$ 5,100
Operating lease assets	10,941
Total lease liability balance	11,413
Derecognition of lease liability	$ (2,534)	(3,545)
Derecognition of build to suit asset		$ (59,719)
Accounting Standards Update 2016-02
Organization And Summary Of Significant Accounting Policies [Line Items]
Operating lease assets				$ 8,000
Total lease liability balance				8,400
Accounting Standards Update 2016-02 \| Build-To-Suit Lease
Organization And Summary Of Significant Accounting Policies [Line Items]
Derecognition of lease liability				1,500
Derecognition of build to suit asset				$ 1,500
Minimum
Organization And Summary Of Significant Accounting Policies [Line Items]
Intangible assets, estimated useful lives	1 year
Maximum
Organization And Summary Of Significant Accounting Policies [Line Items]
Intangible assets, estimated useful lives	12 years
Building \| Minimum
Organization And Summary Of Significant Accounting Policies [Line Items]
Property and equipment, estimated useful lives, up to	7 years
Building \| Maximum
Organization And Summary Of Significant Accounting Policies [Line Items]
Property and equipment, estimated useful lives, up to	25 years
Information technology assets \| Minimum
Organization And Summary Of Significant Accounting Policies [Line Items]
Property and equipment, estimated useful lives, up to	3 years
Information technology assets \| Maximum
Organization And Summary Of Significant Accounting Policies [Line Items]
Property and equipment, estimated useful lives, up to	5 years
Server Equipment
Organization And Summary Of Significant Accounting Policies [Line Items]
Property and equipment, estimated useful lives, up to	3 years
Network Equipment \| Minimum
Organization And Summary Of Significant Accounting Policies [Line Items]
Property and equipment, estimated useful lives, up to	3 years
Network Equipment \| Maximum
Organization And Summary Of Significant Accounting Policies [Line Items]
Property and equipment, estimated useful lives, up to	5 years
Geographic Area \| Revenue
Organization And Summary Of Significant Accounting Policies [Line Items]
Percentage of revenue	100.00%	100.00%	100.00%
Geographic Area \| Revenue \| United States
Organization And Summary Of Significant Accounting Policies [Line Items]
Percentage of revenue	46.00%	46.00%	47.00%