Retirement Benefit Obligations - Schedule of Change in Projected Benefit Obligation, Change in Fair Value of Plan Assets and Funded Status (Detail) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2020
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Projected benefit obligation, beginning of the year	$ 1,549	$ 1,513
Service cost	1	2	$ 2
Interest cost	25	25	34
Benefits paid	(68)	(71)
Settlements	24	22
Actuarial loss (gain)	(283)	(10)
Foreign exchange rate changes	(117)	129
Amendments, transfers and other	0	(17)
Projected benefit obligation, end of the year	1,083	1,549	1,513
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets, beginning of the year	1,447	1,319
Actual return on plan assets	(215)	48
Employer contributions	29	35
Benefits paid	(61)	(63)
Settlements	(24)	(22)
Foreign exchange rate changes	(125)	130
Fair value of plan assets, end of the year	1,051	1,447	1,319
Funded status	(32)	(102)
Domestic Pension Benefits
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Projected benefit obligation, beginning of the year	339	353
Service cost	0	0	0
Interest cost	7	7	11
Benefits paid	(18)	(18)
Settlements	12	12
Actuarial loss (gain)	(56)	9
Foreign exchange rate changes	0	0
Amendments, transfers and other	0	0
Projected benefit obligation, end of the year	260	339	353
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets, beginning of the year	285	258
Actual return on plan assets	(49)	36
Employer contributions	14	21
Benefits paid	(18)	(18)
Settlements	(12)	(12)
Foreign exchange rate changes	0	0
Fair value of plan assets, end of the year	220	285	258
Funded status	(40)	(54)
Foreign Pension Benefits
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Projected benefit obligation, beginning of the year	1,124	1,051
Service cost	1	2	2
Interest cost	17	16	20
Benefits paid	(43)	(45)
Settlements	12	10
Actuarial loss (gain)	(216)	(18)
Foreign exchange rate changes	(116)	128
Amendments, transfers and other	0	0
Projected benefit obligation, end of the year	755	1,124	1,051
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets, beginning of the year	1,162	1,061
Actual return on plan assets	(166)	12
Employer contributions	15	14
Benefits paid	(43)	(45)
Settlements	(12)	(10)
Foreign exchange rate changes	(125)	130
Fair value of plan assets, end of the year	831	1,162	1,061
Funded status	76	38
Postretirement Benefits
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Projected benefit obligation, beginning of the year	86	109
Service cost	0	0	0
Interest cost	1	2	3
Benefits paid	(7)	(8)
Settlements	0	0
Actuarial loss (gain)	(11)	(1)
Foreign exchange rate changes	(1)	1
Amendments, transfers and other	0	(17)
Projected benefit obligation, end of the year	68	86	109
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets, beginning of the year	0	0
Actual return on plan assets	0	0
Employer contributions	0	0
Benefits paid	0	0
Settlements	0	0
Foreign exchange rate changes	0	0
Fair value of plan assets, end of the year	0	0	$ 0
Funded status	$ (68)	$ (86)