Income Taxes - Additional Information (Detail) - USD ($)	12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Income Tax Contingency [Line Items]
Deferred tax asset	$ 1,911,000,000	$ 1,931,000,000
Unrecognized tax benefits	64,000,000	86,000,000	$ 129,000,000	$ 58,000,000
Valuation allowance recorded	1,187,000,000	1,014,000,000
Interest and penalties	11,000,000	(1,000,000)	6,000,000
Interest and penalty accrual	3,000,000	6,000,000	8,000,000
Foreign tax authority settlement, net income tax expense, including interest and penalties	63,000,000
Current foreign tax expense	118,000,000	102,000,000	135,000,000
Deferred foreign tax expense	(151,000,000)	1,000,000	(13,000,000)
Amount that affect effective income tax rate	34,000,000
Undistributed earnings of foreign subsidiaries	2,400,000,000
Income taxes paid	132,000,000	103,000,000	134,000,000
Income tax refunds	9,000,000	10,000,000	$ 8,000,000
Net Operating Loss Carryforwards [Member]
Income Tax Contingency [Line Items]
Deferred tax asset	473,000,000	580,000,000
Unrecognized tax benefits	46,000,000	53,000,000
Valuation allowance recorded	149,000,000	97,000,000
Capital Loss Carryforward [Member]
Income Tax Contingency [Line Items]
Deferred tax asset	904,000,000	803,000,000
Valuation allowance recorded	904,000,000	803,000,000
Capital Loss Carryforward [Member] | Australia [Member]
Income Tax Contingency [Line Items]
Capital loss carryforwards	2,000,000,000
Capital Loss Carryforward [Member] | U.K. [Member]
Income Tax Contingency [Line Items]
Capital loss carryforwards	1,700,000,000
Minimum [Member]
Income Tax Contingency [Line Items]
Amount of uncertain tax liabilities	0
Maximum [Member]
Income Tax Contingency [Line Items]
Amount of uncertain tax liabilities	19,000,000
Settlement with Taxing Authority [Member]
Income Tax Contingency [Line Items]
Current foreign tax expense	20,000,000
Deferred foreign tax expense	43,000,000
U.S. Federal [Member]
Income Tax Contingency [Line Items]
Capital loss carryforwards	36,000,000
U.S. Federal [Member] | Valuation Allowance, Operating Loss Carryforwards [Member]
Income Tax Contingency [Line Items]
Change in valuation allowance tax benefit		$ 106,000,000
U.S. Federal [Member] | Foreign Tax Credits [Member]
Income Tax Contingency [Line Items]
Foreign tax credits	$ 23,000,000
Capital loss carryforwards, expiration date	Jun. 30, 2025
U.S. Federal [Member] | Research $ Development Credits [Member]
Income Tax Contingency [Line Items]
Research and development credits	$ 13,000,000
Capital loss carryforwards, expiration date	Jun. 30, 2036
Foreign Tax Authority [Member]
Income Tax Contingency [Line Items]
Capital loss carryforwards	$ 7,000,000
Capital loss carryforwards, expiration date	Jun. 30, 2025
Foreign Tax Authority [Member] | Valuation Allowance, Operating Loss Carryforwards [Member]
Income Tax Contingency [Line Items]
Change in valuation allowance tax benefit	$ 40,000,000
U.S. States [Member]
Income Tax Contingency [Line Items]
Capital loss carryforwards	26,000,000
State and Foreign Country Jurisdiction [Member]
Income Tax Contingency [Line Items]
Valuation allowance recorded	$ 7,000,000