Segment Information - Revenue and Long-Lived Assets by Geographic Region (Detail) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2020
Segment Reporting Information [Line Items]
Revenues	$ 10,385	$ 9,358	$ 9,008
Total long-lived assets	4,378	4,754
U.S. and Canada
Segment Reporting Information [Line Items]
Revenues	4,097	3,550	3,763
Total long-lived assets	1,513	1,429
Domestic Pension Benefits
Segment Reporting Information [Line Items]
Revenues	4,000	3,500	3,700
Europe
Segment Reporting Information [Line Items]
Revenues	1,808	1,672	1,502
Total long-lived assets	774	887
U.K.
Segment Reporting Information [Line Items]
Revenues	1,400	1,300	1,200
Australasia and Other
Segment Reporting Information [Line Items]
Revenues	4,480	4,136	3,743
Total long-lived assets	2,091	2,438
Australia
Segment Reporting Information [Line Items]
Revenues	$ 4,200	$ 3,900	$ 3,500