CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Millions	Total	Common Shares Outstanding	Common Stock and Other Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)		Non-controlling Interest
Common Shares Outstanding, beginning balance (in shares) at Dec. 31, 2017		889,851
Shareholders' Equity, beginning balance at Dec. 31, 2017	$ 14,721		$ 1,107	$ 14,084	$ (486)	[1]	$ 16
Comprehensive Earnings:
Net Earnings	695			695
Other Comprehensive Income (Loss)	(99)				(99)	[1]
Total Comprehensive Earnings	596
Common stock dividends, per share	(194)			(194)
Share Repurchases (in shares)		(14,966)
Share Repurchases	(836)		(15)	(821)
Stock Option Exercises and Other (in shares)		469
Stock Option Exercises and Other	104		(2)	109			(3)
Common Shares Outstanding, ending balance (in shares) at Mar. 31, 2018		875,354
Shareholders' Equity, ending balance at Mar. 31, 2018	14,391		1,090	13,873	(585)	[1]	13
Common Shares Outstanding, beginning balance (in shares) at Dec. 31, 2017		889,851
Shareholders' Equity, beginning balance at Dec. 31, 2017	14,721		1,107	14,084	(486)	[1]	16
Comprehensive Earnings:
Net Earnings	2,466
Total Comprehensive Earnings	$ 2,378
Share Repurchases (in shares)	(46,000)
Common Shares Outstanding, ending balance (in shares) at Sep. 30, 2018		844,420
Shareholders' Equity, ending balance at Sep. 30, 2018	$ 13,735		973	13,320	(574)	[1]	16
Comprehensive Earnings:
Associated tax of accumulated other comprehensive loss balances					160
Common Shares Outstanding, beginning balance (in shares) at Mar. 31, 2018		875,354
Shareholders' Equity, beginning balance at Mar. 31, 2018	14,391		1,090	13,873	(585)	[1]	13
Comprehensive Earnings:
Net Earnings	877			877
Other Comprehensive Income (Loss)	4				4	[1]
Total Comprehensive Earnings	881
Common stock dividends, per share	(190)			(190)
Share Repurchases (in shares)		(16,386)
Share Repurchases	(974)		(16)	(958)
Stock Option Exercises and Other (in shares)		(157)
Stock Option Exercises and Other	(85)		(88)	2			1
Common Shares Outstanding, ending balance (in shares) at Jun. 30, 2018		858,811
Shareholders' Equity, ending balance at Jun. 30, 2018	14,023		986	13,604	(581)	[1]	14
Comprehensive Earnings:
Associated tax of accumulated other comprehensive loss balances					158
Net Earnings	894			894
Other Comprehensive Income (Loss)	7				7	[1]
Total Comprehensive Earnings	901
Common stock dividends, per share	$ (186)			(186)
Share Repurchases (in shares)	(15,000)	(14,341)
Share Repurchases	$ (1,006)		(15)	(991)
Stock Option Exercises and Other (in shares)		(50)
Stock Option Exercises and Other	3		2	(1)			2
Common Shares Outstanding, ending balance (in shares) at Sep. 30, 2018		844,420
Shareholders' Equity, ending balance at Sep. 30, 2018	13,735		973	13,320	(574)	[1]	16
Comprehensive Earnings:
Associated tax of accumulated other comprehensive loss balances					156
Common Shares Outstanding, beginning balance (in shares) at Dec. 31, 2018		818,180
Shareholders' Equity, beginning balance at Dec. 31, 2018	12,580		1,067	12,157	(661)	[1]	17
Comprehensive Earnings:
Net Earnings	834			834
Other Comprehensive Income (Loss)	2				2	[1]
Total Comprehensive Earnings	836
Common stock dividends, per share	(195)			(195)
Share Repurchases (in shares)		(11,540)
Share Repurchases	(796)		(12)	(784)
Stock Option Exercises and Other (in shares)		2,524
Stock Option Exercises and Other	20		21	(1)
Common Shares Outstanding, ending balance (in shares) at Mar. 31, 2019		809,164
Shareholders' Equity, ending balance at Mar. 31, 2019	12,445		1,076	12,011	(659)	[1]	17
Common Shares Outstanding, beginning balance (in shares) at Dec. 31, 2018		818,180
Shareholders' Equity, beginning balance at Dec. 31, 2018	12,580		1,067	12,157	(661)	[1]	17
Comprehensive Earnings:
Net Earnings	2,560
Other Comprehensive Income (Loss)	13
Total Comprehensive Earnings	$ 2,573
Share Repurchases (in shares)	(39,000)
Common Shares Outstanding, ending balance (in shares) at Sep. 30, 2019		782,342
Shareholders' Equity, ending balance at Sep. 30, 2019	$ 11,879		1,096	11,416	(648)	[1]	15
Comprehensive Earnings:
Associated tax of accumulated other comprehensive loss balances					179
Common Shares Outstanding, beginning balance (in shares) at Mar. 31, 2019		809,164
Shareholders' Equity, beginning balance at Mar. 31, 2019	12,445		1,076	12,011	(659)	[1]	17
Comprehensive Earnings:
Net Earnings	870			870
Other Comprehensive Income (Loss)	4				4	[1]
Total Comprehensive Earnings	874
Common stock dividends, per share	(193)			(193)
Share Repurchases (in shares)		(11,266)
Share Repurchases	(860)		(11)	(849)
Stock Option Exercises and Other (in shares)		278
Stock Option Exercises and Other	24		23	4			(3)
Common Shares Outstanding, ending balance (in shares) at Jun. 30, 2019		798,176
Shareholders' Equity, ending balance at Jun. 30, 2019	12,290		1,088	11,843	(655)	[1]	14
Comprehensive Earnings:
Associated tax of accumulated other comprehensive loss balances					177
Net Earnings	856			856
Other Comprehensive Income (Loss)	7				7	[1]
Total Comprehensive Earnings	863
Common stock dividends, per share	$ (189)			(189)
Share Repurchases (in shares)	(16,000)	(16,098)
Share Repurchases	$ (1,111)		(16)	(1,095)
Stock Option Exercises and Other (in shares)		264
Stock Option Exercises and Other	26		24	1			1
Common Shares Outstanding, ending balance (in shares) at Sep. 30, 2019		782,342
Shareholders' Equity, ending balance at Sep. 30, 2019	$ 11,879		$ 1,096	$ 11,416	(648)	[1]	$ 15
Comprehensive Earnings:
Associated tax of accumulated other comprehensive loss balances					$ 175

[1] Accumulated Other Comprehensive Loss balances shown above are net of tax. The associated taxes were $160 million, $158 million, and $156 million as of first, second and third quarters 2018, respectively. For additional information, see Note 12, Other Comprehensive Income.