Employee Retirement Benefit Plans-Level 3 (Details) - Level 3 [Member] $ in Millions	12 Months Ended
Jun. 30, 2022 USD ($)
Employer contributions between measurement date and reporting date
Beginning balance	$ 23
Relating to assets still held at the reporting date	(2)
Purchases, sales, settlements, contributions and benefits paid	(5)
Transfers in and/or out of Level 3	11
Ending balance	27
Insurance Contracts [Member]
Employer contributions between measurement date and reporting date
Beginning balance	3
Relating to assets still held at the reporting date	0
Purchases, sales, settlements, contributions and benefits paid	(3)
Transfers in and/or out of Level 3	9
Ending balance	9
Other Unobservable Assets [Member]
Employer contributions between measurement date and reporting date
Beginning balance	20
Relating to assets still held at the reporting date	(2)
Purchases, sales, settlements, contributions and benefits paid	(2)
Transfers in and/or out of Level 3	2
Ending balance	$ 18

Fair Value Measurement With Unobservable Inputs Reconcilation, Recurring Basis, Assets Held at Reporting Date

No definition available.

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

+ Details

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- Definition

Amount of purchases, (sales), issuances and (settlements) of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)
-URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258

+ Details

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Period Type:	duration

- Definition

Amount of transfer of financial instrument classified as an asset into (out of) level 3 of the fair value hierarchy.

+ References

No definition available.

+ Details

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- Definition

Fair value of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258

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- Details

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- Details

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