Consolidated Statements of Shareholders' Equity - USD ($) shares in Thousands, $ in Millions	Total	Common Stock	Preferred Stock	Additional Paid-In Capital	Reserve for ESOP Debt Retirement	Accumulated Other Comprehensive Income/(Loss)	Treasury Stock	Retained Earnings	Noncontrolling Interest
Beginning balance (in shares) at Jun. 30, 2023		2,362,120
Beginning balance at Jun. 30, 2023	$ 47,065	$ 4,009	$ 819	$ 66,556	$ (821)	$ (12,220)	$ (129,736)	$ 118,170	$ 288
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	8,049							7,988	60
Other comprehensive income/(loss)	51					53			(2)
Dividends and dividend equivalents:
Common	(4,450)							(4,450)
Preferred	(140)							(140)
Treasury stock purchases (in shares)		(16,722)
Treasury stock purchases	(2,516)						(2,516)
Employee stock plans (in shares)		6,351
Employee stock plans	734			378			356
Preferred stock conversions (in shares)		1,273
Preferred stock conversions	0		(10)	1			9
ESOP debt impacts	87				39			48
Noncontrolling interest, net	(52)								(52)
Ending balance (in shares) at Dec. 31, 2023		2,353,021
Ending balance at Dec. 31, 2023	48,829	$ 4,009	809	66,935	(782)	(12,167)	(131,887)	121,617	294
Beginning balance (in shares) at Sep. 30, 2023		2,356,886
Beginning balance at Sep. 30, 2023	48,014	$ 4,009	812	66,822	(782)	(12,583)	(131,029)	120,443	321
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	3,493							3,468	25
Other comprehensive income/(loss)	416					416
Dividends and dividend equivalents:
Common	(2,225)							(2,225)
Preferred	(70)							(70)
Treasury stock purchases (in shares)		(6,879)
Treasury stock purchases	(1,008)						(1,008)
Employee stock plans (in shares)		2,630
Employee stock plans	260			113			147
Preferred stock conversions (in shares)		385
Preferred stock conversions	0		(3)				3
Noncontrolling interest, net	(52)								(52)
Ending balance (in shares) at Dec. 31, 2023		2,353,021
Ending balance at Dec. 31, 2023	48,829	$ 4,009	809	66,935	(782)	(12,167)	(131,887)	121,617	294
Beginning balance (in shares) at Jun. 30, 2024		2,357,051
Beginning balance at Jun. 30, 2024	50,559	$ 4,009	798	67,684	(737)	(11,900)	(133,379)	123,811	272
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	8,646							8,589	56
Other comprehensive income/(loss)	260					263			(3)
Dividends and dividend equivalents:
Common	(4,754)							(4,754)
Preferred	(144)							(144)
Treasury stock purchases (in shares)		(26,269)
Treasury stock purchases	(4,462)						(4,462)
Employee stock plans (in shares)		12,827
Employee stock plans	1,318			598			720
Preferred stock conversions (in shares)		1,243
Preferred stock conversions	0		(10)	1			9
ESOP debt impacts	71				30			41
Noncontrolling interest, net	(51)								(51)
Ending balance (in shares) at Dec. 31, 2024		2,344,852
Ending balance at Dec. 31, 2024	51,443	$ 4,009	788	68,283	(707)	(11,637)	(137,112)	127,544	275
Beginning balance (in shares) at Sep. 30, 2024		2,355,042
Beginning balance at Sep. 30, 2024	52,141	$ 4,009	791	68,102	(707)	(10,893)	(134,823)	125,361	300
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	4,659							4,630	29
Other comprehensive income/(loss)	(747)					(744)			(3)
Dividends and dividend equivalents:
Common	(2,375)							(2,375)
Preferred	(72)							(72)
Treasury stock purchases (in shares)		(14,716)
Treasury stock purchases	(2,520)						(2,520)
Employee stock plans (in shares)		4,057
Employee stock plans	408			181			228
Preferred stock conversions (in shares)		469
Preferred stock conversions	0		(3)				3
Noncontrolling interest, net	(51)								(51)
Ending balance (in shares) at Dec. 31, 2024		2,344,852
Ending balance at Dec. 31, 2024	$ 51,443	$ 4,009	$ 788	$ 68,283	$ (707)	$ (11,637)	$ (137,112)	$ 127,544	$ 275