Consolidated Statements of Shareholders' Equity - USD ($) shares in Millions, $ in Millions	Total	Common Shares	Retained Earnings	Treasury Shares	Accumulated Other Comprehensive Loss	Noncontrolling Interests
Net Income (Loss) Attributable to Parent	$ 256		$ 256
Balance at beginning of period (in shares) at Jun. 30, 2017		327.0
Balance at beginning of period at Jun. 30, 2017	6,828	$ 2,697	4,967		$ (125)	$ 20
Treasury, balance at beginning of period (in shares) at Jun. 30, 2017				(11.0)
Treasury, balance at beginning of period at Jun. 30, 2017				$ (731)
Increase (Decrease) in Shareholders' Equity
Net earnings	259					(1)
Net Earnings Including Portion Attributable to Noncontrolling Interest Excluding Redeemable Noncontrolling Interest	255
Other comprehensive income, net of tax	33				33
Purchase of noncontrolling interests	(19)					(19)
Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture	90	$ 33		$ 57
Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture				1.0
Treasury shares acquired (in shares)				(8.4)
Share repurchase program activity	(550)			$ (550)
Dividends declared	(584)		(584)
Other	6		6			0
Balance at end of period (in shares) at Jun. 30, 2018		327.0
Balance at end of period at Jun. 30, 2018	6,059	$ 2,730	4,645		(92)	0
Treasury, balance at end of period (in shares) at Jun. 30, 2018				(18.0)
Treasury, balance at end of period at Jun. 30, 2018				$ (1,224)
Balance at beginning of period (in shares) at Jun. 30, 2017		327.0
Balance at beginning of period at Jun. 30, 2017	$ 6,828	$ 2,697	4,967		(125)	20
Treasury, balance at beginning of period (in shares) at Jun. 30, 2017				(11.0)
Treasury, balance at beginning of period at Jun. 30, 2017				$ (731)
Increase (Decrease) in Shareholders' Equity
Share repurchase program activity				$ (1,500)
Balance at end of period (in shares) at Jun. 30, 2020	327.0	327.0
Balance at end of period at Jun. 30, 2020	$ 1,792	$ 2,789	1,170		(104)	3
Treasury, balance at end of period (in shares) at Jun. 30, 2020	(34.0)			(35.0)
Treasury, balance at end of period at Jun. 30, 2020	$ (2,066)			$ (2,066)
Net Income (Loss) Attributable to Parent	1,363
Balance at beginning of period (in shares) at Jun. 30, 2018		327.0
Balance at beginning of period at Jun. 30, 2018	6,059	$ 2,730	4,645		(92)	0
Treasury, balance at beginning of period (in shares) at Jun. 30, 2018				(18.0)
Treasury, balance at beginning of period at Jun. 30, 2018				$ (1,224)
Increase (Decrease) in Shareholders' Equity
Net earnings	1,365					2
Other comprehensive income, net of tax	13				13
Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture	67	$ 33		$ 34
Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture				1.0
Treasury shares acquired (in shares)				(11.0)
Share repurchase program activity	(600)			$ (600)
Dividends declared	(575)		(575)
Other	$ (1)		1
Balance at end of period (in shares) at Jun. 30, 2019	327.0	327.0
Balance at end of period at Jun. 30, 2019	$ 6,330	$ 2,763	5,434		(79)	2
Treasury, balance at end of period (in shares) at Jun. 30, 2019	(28.0)			(28.0)
Treasury, balance at end of period at Jun. 30, 2019	$ (1,790)			$ (1,790)
Net Income (Loss) Attributable to Parent	(3,696)
Increase (Decrease) in Shareholders' Equity
Net earnings	(3,693)					3
Other comprehensive income, net of tax	(25)				(25)
Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture	100	$ 26		$ 74
Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture				0.0
Treasury shares acquired (in shares)				(7.3)
Share repurchase program activity	(350)			$ (350)
Dividends declared	(570)		(570)
Other	$ 0		(2)			2
Balance at end of period (in shares) at Jun. 30, 2020	327.0	327.0
Balance at end of period at Jun. 30, 2020	$ 1,792	$ 2,789	$ 1,170		$ (104)	$ 3
Treasury, balance at end of period (in shares) at Jun. 30, 2020	(34.0)			(35.0)
Treasury, balance at end of period at Jun. 30, 2020	$ (2,066)			$ (2,066)