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]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common Stock, Shares, Outstanding		2,498,093
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	$ 52,883	$ 4,009	$ 967	$ 63,846	$ (1,204)	$ (14,749)	$ (99,217)	$ 98,641	$ 590
Common Stock, Dividends, Per Share, Cash Paid	$ 1.4344
Net Income (Loss) Attributable to Parent								6,393
Net Income (Loss) Attributable to Noncontrolling Interest	$ 34								34
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification	(553)					(326)		(200)	(27)
Net Earnings	6,427
Other Comprehensive Income (Loss), Net of Tax	(84)					(81)			(3)
Dividends, Common Stock	(3,581)							(3,581)
Dividends, Preferred Stock	(131)							(131)
Stock Repurchased During Period, Shares		(24,337)
Stock Repurchased During Period, Value	(2,003)						(2,003)
Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture		25,389
Proceeds, Issuance of Shares, Share-based Payment Arrangement, Including Option Exercised	1,669			(53)			1,722
Stock Issued During Period, Shares, Conversion of Convertible Securities		2,435
Stock Issued During Period, Value, Conversion of Convertible Securities	0		(21)	3			18
ESOP Debt Impacts	74				26			48
Noncontrolling Interest, Period Increase (Decrease)	(258)			(117)					(141)
Common Stock, Shares, Outstanding		2,491,408
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	$ 52,504	$ 4,009	951	63,711	(1,177)	(15,133)	(99,956)	99,831	268
Common Stock, Dividends, Per Share, Cash Paid	$ 0.7172
Net Income (Loss) Attributable to Parent								3,194
Net Income (Loss) Attributable to Noncontrolling Interest	$ 22								22
Net Earnings	3,216
Other Comprehensive Income (Loss), Net of Tax	(22)					(23)			1
Dividends, Common Stock	(1,790)							(1,790)
Dividends, Preferred Stock	(65)							(65)
Stock Repurchased During Period, Shares		(8,647)
Stock Repurchased During Period, Value	(751)						(751)
Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture		18,021
Proceeds, Issuance of Shares, Share-based Payment Arrangement, Including Option Exercised	1,149			(73)			1,222
Stock Issued During Period, Shares, Conversion of Convertible Securities		798
Stock Issued During Period, Value, Conversion of Convertible Securities	0		(5)	0			5
ESOP Debt Impacts	(1)				(1)			0
Noncontrolling Interest, Period Increase (Decrease)	203			41					162
Common Stock, Shares, Outstanding		2,501,580
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	54,443	$ 4,009	946	63,679	(1,178)	(15,156)	(99,480)	101,170	453
Common Stock, Shares, Outstanding		2,504,751
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	$ 47,579	$ 4,009	928	63,827	(1,146)	(14,936)	(100,406)	94,918	385
Common Stock, Dividends, Per Share, Cash Paid	$ 1.4918
Net Income (Loss) Attributable to Parent								7,310
Net Income (Loss) Attributable to Noncontrolling Interest	$ 50								50
Net Earnings	7,360
Other Comprehensive Income (Loss), Net of Tax	(12)					(6)			(6)
Dividends, Common Stock	(3,737)							(3,737)
Dividends, Preferred Stock	(129)							(129)
Stock Repurchased During Period, Shares		(54,033)
Stock Repurchased During Period, Value	(6,504)						(6,504)
Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture		16,731
Proceeds, Issuance of Shares, Share-based Payment Arrangement, Including Option Exercised	1,324			189			1,135
Stock Issued During Period, Shares, Conversion of Convertible Securities		2,004
Stock Issued During Period, Value, Conversion of Convertible Securities	0		(17)	3			14
ESOP Debt Impacts	86				34			52
Noncontrolling Interest, Period Increase (Decrease)	(59)			0					(59)
Common Stock, Shares, Outstanding		2,493,812
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	$ 46,984	$ 4,009	915	63,949	(1,112)	(15,298)	(102,510)	96,625	406
Common Stock, Dividends, Per Share, Cash Paid	$ 0.7459
Net Income (Loss) Attributable to Parent								3,717
Net Income (Loss) Attributable to Noncontrolling Interest	$ 26								26
Net Earnings	3,743
Other Comprehensive Income (Loss), Net of Tax	354					356			(2)
Dividends, Common Stock	(1,863)							(1,863)
Dividends, Preferred Stock	(64)							(64)
Stock Repurchased During Period, Shares		(28,628)
Stock Repurchased During Period, Value	(3,504)						(3,504)
Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture		3,681
Proceeds, Issuance of Shares, Share-based Payment Arrangement, Including Option Exercised	319			69			250
Stock Issued During Period, Shares, Conversion of Convertible Securities		588
Stock Issued During Period, Value, Conversion of Convertible Securities	0		(4)	1			3
ESOP Debt Impacts	(1)				0			(1)
Noncontrolling Interest, Period Increase (Decrease)	(60)			0					(60)
Common Stock, Shares, Outstanding		2,469,453
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	$ 45,908	$ 4,009	$ 911	$ 64,019	$ (1,112)	$ (14,942)	$ (105,761)	$ 98,414	$ 370