CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Millions	Total	Common Stock [Member]	Preferred Stock [Member]	Additional Paid-in Capital [Member]	Reserve for ESOP Debt Retirement [Member]	AOCI Attributable to Parent [Member]	Treasury Stock [Member]	Retained Earnings [Member]	Noncontrolling Interest [Member]
Common Stock, Shares, Outstanding, Beginning Balance at Jun. 30, 2021		2,429,706
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Beginning Balance at Jun. 30, 2021	$ 46,654	$ 4,009	$ 870	$ 64,848	$ (1,006)	$ (13,744)	$ (114,973)	$ 106,374	$ 276
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Earnings	8,368							8,335	33
Other Comprehensive Income (Loss), Net of Tax	$ 180					180			0
Common Stock, Dividends, Per Share, Cash Paid	$ 1.7396
Dividends, Common Stock	$ (4,226)							(4,226)
Dividends, Preferred Stock	(140)							(140)
Stock Repurchased During Period, Shares		(50,786)
Stock Repurchased During Period, Value	(7,504)						(7,504)
Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture		16,423
Proceeds, Issuance of Shares, Share-based Payment Arrangement, Including Option Exercised	1,506			584			922
Stock Issued During Period, Shares, Conversion of Convertible Securities		1,723
Stock Issued During Period, Value, Conversion of Convertible Securities	0		(14)	(2)			(12)
ESOP Debt Impacts	(91)				(41)			(50)
Noncontrolling Interest, Period Increase (Decrease)	(36)			(2)					(34)
Common Stock, Shares, Outstanding, Ending Balance at Dec. 31, 2021		2,397,066
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Ending Balance at Dec. 31, 2021	44,893	$ 4,009	856	65,432	(965)	(13,564)	(121,543)	110,393	275
Common Stock, Shares, Outstanding, Beginning Balance at Sep. 30, 2021		2,419,948
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Beginning Balance at Sep. 30, 2021	46,408	$ 4,009	859	65,148	(964)	(14,062)	(117,240)	108,361	297
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Earnings	4,242							4,223	19
Other Comprehensive Income (Loss), Net of Tax	$ 498					498			0
Common Stock, Dividends, Per Share, Cash Paid	$ 0.8698
Dividends, Common Stock	$ (2,108)							(2,108)
Dividends, Preferred Stock	(70)							(70)
Stock Repurchased During Period, Shares		(31,433)
Stock Repurchased During Period, Value	(4,754)						(4,754)
Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture		7,986
Proceeds, Issuance of Shares, Share-based Payment Arrangement, Including Option Exercised	732			284			448
Stock Issued During Period, Shares, Conversion of Convertible Securities		565
Stock Issued During Period, Value, Conversion of Convertible Securities	0		(3)	0			(3)
ESOP Debt Impacts	(14)				(1)			(13)
Noncontrolling Interest, Period Increase (Decrease)	(41)			0					(41)
Common Stock, Shares, Outstanding, Ending Balance at Dec. 31, 2021		2,397,066
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Ending Balance at Dec. 31, 2021	44,893	$ 4,009	856	65,432	(965)	(13,564)	(121,543)	110,393	275
Common Stock, Shares, Outstanding, Beginning Balance at Jun. 30, 2022		2,393,877
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Beginning Balance at Jun. 30, 2022	46,854	$ 4,009	843	65,795	(916)	(12,189)	(123,382)	112,429	265
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Earnings	7,922							7,872	50
Other Comprehensive Income (Loss), Net of Tax	$ (325)					(317)			(8)
Common Stock, Dividends, Per Share, Cash Paid	$ 1.8266
Dividends, Common Stock	$ (4,357)							(4,357)
Dividends, Preferred Stock	(141)							(141)
Stock Repurchased During Period, Shares		(42,615)
Stock Repurchased During Period, Value	(6,002)						(6,002)
Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture		6,452
Proceeds, Issuance of Shares, Share-based Payment Arrangement, Including Option Exercised	710			348			362
Stock Issued During Period, Shares, Conversion of Convertible Securities		1,430
Stock Issued During Period, Value, Conversion of Convertible Securities	0		(12)	(2)			(10)
ESOP Debt Impacts	(101)				(46)			(55)
Noncontrolling Interest, Period Increase (Decrease)	(37)			0					(37)
Common Stock, Shares, Outstanding, Ending Balance at Dec. 31, 2022		2,359,144
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Ending Balance at Dec. 31, 2022	44,725	$ 4,009	831	66,145	(870)	(12,506)	(129,012)	115,858	270
Common Stock, Shares, Outstanding, Beginning Balance at Sep. 30, 2022		2,369,697
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Beginning Balance at Sep. 30, 2022	44,334	$ 4,009	834	65,955	(870)	(12,811)	(127,205)	114,163	259
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Earnings	3,959							3,933	26
Other Comprehensive Income (Loss), Net of Tax	$ 302					305			(3)
Common Stock, Dividends, Per Share, Cash Paid	$ 0.9133
Dividends, Common Stock	$ (2,168)							(2,168)
Dividends, Preferred Stock	(70)							(70)
Stock Repurchased During Period, Shares		(14,426)
Stock Repurchased During Period, Value	(2,002)						(2,002)
Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture		3,441
Proceeds, Issuance of Shares, Share-based Payment Arrangement, Including Option Exercised	382			189			193
Stock Issued During Period, Shares, Conversion of Convertible Securities		432
Stock Issued During Period, Value, Conversion of Convertible Securities	0		(3)	(1)			(2)
ESOP Debt Impacts	0				0			0
Noncontrolling Interest, Period Increase (Decrease)	(12)			0					(12)
Common Stock, Shares, Outstanding, Ending Balance at Dec. 31, 2022		2,359,144
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Ending Balance at Dec. 31, 2022	$ 44,725	$ 4,009	$ 831	$ 66,145	$ (870)	$ (12,506)	$ (129,012)	$ 115,858	$ 270