Retirement Benefit Obligations - Schedule of Expected Benefit Payments (Detail) $ in Millions	Jun. 30, 2021 USD ($)
Defined Benefit Plan, Expected Future Benefit Payment [Abstract]
2022	$ 88
2023	80
2024	79
2025	77
2026	75
2027-2031	371
Postretirement Benefits
Defined Benefit Plan, Expected Future Benefit Payment [Abstract]
2022	8
2023	8
2024	7
2025	7
2026	7
2027-2031	27
Domestic Pension Benefits
Defined Benefit Plan, Expected Future Benefit Payment [Abstract]
2022	25
2023	19
2024	19
2025	19
2026	19
2027-2031	95
Foreign Pension Benefits
Defined Benefit Plan, Expected Future Benefit Payment [Abstract]
2022	55
2023	53
2024	53
2025	51
2026	49
2027-2031	$ 249

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- Definition

Amount of benefit for defined benefit plan expected to be paid in five fiscal years after fifth fiscal year following current fiscal year.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920

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- Definition

Amount of benefit for defined benefit plan expected to be paid in next fiscal year following current fiscal year.

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- Definition

Amount of benefit for defined benefit plan expected to be paid in fifth fiscal year following current fiscal year.

+ References

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Amount of benefit for defined benefit plan expected to be paid in fourth fiscal year following current fiscal year.

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Amount of benefit for defined benefit plan expected to be paid in third fiscal year following current fiscal year.

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Amount of benefit for defined benefit plan expected to be paid in second fiscal year following current fiscal year.

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