Consolidated Statements Of Equity - USD ($) shares in Millions, $ in Millions	Total	Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings [Member]	Other Comprehensive Earnings (Loss) [Member]	Treasury Stock [Member]	Noncontrolling Interests [Member]
Balance at Dec. 31, 2020	$ 3,019	$ 38	$ 2,766	$ 208	$ (127)		$ 134
Balance, shares at Dec. 31, 2020		382
Net earnings	477			469			8
Other comprehensive earnings (loss), net of tax	26				26
Restricted stock grants, net of cancellations, value		$ 1	(1)
Restricted stock grants, net of cancellations, shares		6
Common stock repurchased	(40)					$ (40)
Common stock retired			(40)			(40)
Common stock retired, shares		(2)
Common stock dividends	(434)			(434)
Common stock issued	5,432	$ 29	5,403
Common stock issued, Shares		290
Share-based compensation	61		61
Share-based compensation, shares		1
Contributions from noncontrolling interests	2						2
Distributions to noncontrolling interests	(8)						(8)
Balance at Jun. 30, 2021	8,535	$ 68	8,189	243	(101)	0	136
Balance, shares at Jun. 30, 2021		677
Balance at Mar. 31, 2021	8,486	$ 67	8,172	218	(104)	0	133
Balance, shares at Mar. 31, 2021		675
Net earnings	261			256			5
Other comprehensive earnings (loss), net of tax	3				3
Restricted stock grants, net of cancellations, value		$ 1	(1)
Restricted stock grants, net of cancellations, shares		2
Common stock repurchased	(2)					(2)
Common stock retired			(2)			2
Common stock dividends	(231)			(231)
Share-based compensation	20		20
Contributions from noncontrolling interests	2						2
Distributions to noncontrolling interests	(4)						(4)
Balance at Jun. 30, 2021	8,535	$ 68	8,189	243	(101)	0	136
Balance, shares at Jun. 30, 2021		677
Balance at Dec. 31, 2021	9,399	$ 66	7,636	1,692	(132)	0	137
Balance, shares at Dec. 31, 2021		663
Net earnings	2,933			2,921			12
Other comprehensive earnings (loss), net of tax	2				2
Restricted stock grants, net of cancellations, value	2	$ 1	1
Restricted stock grants, net of cancellations, shares		2
Common stock repurchased	(634)					(634)
Common stock retired		$ (1)	(620)			621
Common stock retired, shares		(10)
Common stock dividends	(1,506)			(1,506)
Share-based compensation	43		43
Share-based compensation, shares		1
Distributions to noncontrolling interests	(13)						(13)
Balance at Jun. 30, 2022	10,226	$ 66	7,060	3,107	(130)	(13)	136
Balance, shares at Jun. 30, 2022		656
Balance at Mar. 31, 2022	9,435	$ 66	7,371	2,013	(131)	(19)	135
Balance, shares at Mar. 31, 2022		661
Net earnings	1,938			1,932			6
Other comprehensive earnings (loss), net of tax	1				1
Restricted stock grants, net of cancellations, value	1	$ 1
Common stock repurchased	(329)					(329)
Common stock retired		$ (1)	(334)			335
Common stock retired, shares		(5)
Common stock dividends	(838)			(838)
Share-based compensation	23		23
Distributions to noncontrolling interests	(5)						(5)
Balance at Jun. 30, 2022	$ 10,226	$ 66	$ 7,060	$ 3,107	$ (130)	$ (13)	$ 136
Balance, shares at Jun. 30, 2022		656