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Fair Value Measurements - Narrative (Details) $ in Millions	1 Months Ended
	Jun. 30, 2019 USD ($)
Fair Value Disclosures [Abstract]
Investments sold	$ 41

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- References

No definition available.

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- Definition

The cash inflow associated with the sale of investments that are pledged or subject to withdrawal restrictions during the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3179-108585

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