Business Combinations - Intangible Assets (Details) - Credit Karma $ in Millions	Dec. 03, 2020 USD ($)
Business Acquisition [Line Items]
Estimated Useful Life	14 years 4 months 24 days
Intangible assets	$ 3,372
User relationships
Business Acquisition [Line Items]
Estimated Useful Life	15 years
Intangible assets	$ 2,781
Trade Names and Logos
Business Acquisition [Line Items]
Estimated Useful Life	15 years
Intangible assets	$ 375
Purchased technology
Business Acquisition [Line Items]
Estimated Useful Life	6 years
Intangible assets	$ 216

Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275

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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

The amount of identifiable intangible assets recognized as of the acquisition date.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 55
-Paragraph 37
-URI http://asc.fasb.org/extlink&oid=121600890&loc=d3e2207-128464

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