Leases - Additional Information (Detail) $ in Millions	12 Months Ended
Jun. 30, 2020 USD ($)
Disclosure of leases [Line Items]
Commitments for leases not yet commenced	$ 1,458
Short-term leases commitments	$ 103
Bottom of range [member] \| Machinery [member]
Disclosure of leases [Line Items]
Lease term	10 years
Bottom of range [member] \| Buildings [member]
Disclosure of leases [Line Items]
Lease term	10 years
Bottom of range [member] \| Ships [member]
Disclosure of leases [Line Items]
Lease term	4 years
Top of range [member] \| Ships [member]
Disclosure of leases [Line Items]
Lease term	10 years

The amount of the lease commitments for short-term leases accounted for applying paragraph 6 of IFRS 16. Short-term lease is a lease that, at the commencement date, has a lease term of 12 months or less. A lease that contains a purchase option is not a short-term lease.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 16
-IssueDate 2019-01-01
-Paragraph 55
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2019-en-r&anchor=para_55&doctype=Standard
-URIDate 2019-03-27

Name:	ifrs-full_LeaseCommitmentsForShorttermLeasesForWhichRecognitionExemptionHasBeenUsed
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant