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, 2020		2,479,746
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Beginning Balance at Jun. 30, 2020	$ 46,878	$ 4,009	$ 897	$ 64,194	$ (1,080)	$ (16,165)	$ (105,573)	$ 100,239	$ 357
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Earnings	8,195							8,131	64
Other Comprehensive Income (Loss), Net of Tax	1,081					1,074			7
Dividends, Common Stock	(3,935)							(3,935)
Dividends, Preferred Stock	(132)							(132)
Stock Repurchased During Period, Shares		(36,127)
Stock Repurchased During Period, Value	(5,008)						(5,008)
Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture		17,340
Proceeds, Issuance of Shares, Share-based Payment Arrangement, Including Option Exercised	1,464			476			988
Stock Issued During Period, Shares, Conversion of Convertible Securities		1,517
Stock Issued During Period, Value, Conversion of Convertible Securities	0		(12)	(2)			(10)
ESOP Debt Impacts	66				8			58
Noncontrolling Interest, Period Increase (Decrease)	(69)								(69)
Common Stock, Shares, Outstanding, Ending Balance at Dec. 31, 2020		2,462,476
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Ending Balance at Dec. 31, 2020	48,540	$ 4,009	885	64,672	(1,072)	(15,091)	(109,583)	104,361	359
Common Stock, Shares, Outstanding, Beginning Balance at Sep. 30, 2020		2,479,606
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Beginning Balance at Sep. 30, 2020	48,576	$ 4,009	888	64,467	(1,046)	(15,881)	(106,794)	102,539	394
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Earnings	3,887							3,854	33
Other Comprehensive Income (Loss), Net of Tax	$ 792					790			2
Common Stock, Dividends, Per Share, Cash Paid	$ 0.7907
Dividends, Common Stock	$ (1,966)							(1,966)
Dividends, Preferred Stock	(66)							(66)
Stock Repurchased During Period, Shares		(21,485)
Stock Repurchased During Period, Value	(3,008)						(3,008)
Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture		3,836
Proceeds, Issuance of Shares, Share-based Payment Arrangement, Including Option Exercised	421			205			216
Stock Issued During Period, Shares, Conversion of Convertible Securities		519
Stock Issued During Period, Value, Conversion of Convertible Securities	0		(3)	0			(3)
ESOP Debt Impacts	(26)				(26)			0
Noncontrolling Interest, Period Increase (Decrease)	(70)								(70)
Common Stock, Shares, Outstanding, Ending Balance at Dec. 31, 2020		2,462,476
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Ending Balance at Dec. 31, 2020	48,540	$ 4,009	885	64,672	(1,072)	(15,091)	(109,583)	104,361	359
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