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Investments - Equity Investments Without Readily Determinable Fair Values (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Equity Securities without Readily Determinable Fair Value [Roll Forward]
Carrying value, beginning of period	$ 78	$ 528	$ 85	$ 539
Additions	0	1	0	1
Upward adjustments for observable price changes	0	41	0	41
Downward adjustments for observable price changes and impairment	0	0	(7)	0
Foreign currency translation and other	(2)	1	(2)	(10)
Carrying value, end of period	$ 76	$ 571	76	$ 571
Strategic Investments
Equity Securities without Readily Determinable Fair Value [Roll Forward]
Downward adjustments for observable price changes and impairment			$ (7)

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- Definition

Equity Securities without Readily Determinable Fair Value, Additions

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Equity Securities without Readily Determinable Fair Value, Foreign Currency Translation

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- Definition

Equity Securities without Readily Determinable Fair Value [Roll Forward]

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- Definition

Amount of investment in equity security without readily determinable fair value.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 321
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=126980263&loc=SL75117539-209714

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- Definition

Amount of loss from downward price adjustment on investment in equity security without readily determinable fair value.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 321
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=126980263&loc=SL75117539-209714

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Amount of gain from upward price adjustment on investment in equity security without readily determinable fair value.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 321
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (c)
-URI https://asc.fasb.org/extlink&oid=126980263&loc=SL75117539-209714

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