CONDENSED CONSOLIDATED STATEMENTS OF EQUITY - USD ($) $ in Millions	Total	Total Shareholders' Equity	Common Stock	Treasury Stock	Reinvested Earnings	Accumulated Other Comprehensive Income (Loss)	Non- controlling Interest - Preferred Stock  of Subsidiary
Beginning balance (in shares) at Dec. 31, 2020			1,984,678,673
Beginning balance at Dec. 31, 2020	$ 21,253	$ 21,001	$ 30,224		$ (9,196)	$ (27)	$ 252
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	123	123			123
Other comprehensive income (loss)	1	1				1
Common stock issued, net (in shares)			427,030
Stock-based compensation amortization	2	2	$ 2
Ending balance (in shares) at Mar. 31, 2021			1,985,105,703
Ending balance at Mar. 31, 2021	21,379	21,127	$ 30,226		(9,073)	(26)	252
Beginning balance (in shares) at Dec. 31, 2020			1,984,678,673
Beginning balance at Dec. 31, 2020	21,253	21,001	$ 30,224		(9,196)	(27)	252
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	524
Other comprehensive income (loss)	1
Ending balance (in shares) at Jun. 30, 2021			1,985,273,048
Ending balance at Jun. 30, 2021	21,799	21,547	$ 30,245		(8,672)	(26)	252
Beginning balance (in shares) at Mar. 31, 2021			1,985,105,703
Beginning balance at Mar. 31, 2021	21,379	21,127	$ 30,226		(9,073)	(26)	252
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	401	401			401
Other comprehensive income (loss)	0	0				0
Common stock issued, net (in shares)			167,345
Stock-based compensation amortization	19	19	$ 19
Ending balance (in shares) at Jun. 30, 2021			1,985,273,048
Ending balance at Jun. 30, 2021	$ 21,799	21,547	$ 30,245		(8,672)	(26)	252
Beginning balance (in shares) at Dec. 31, 2021	1,985,400,540		1,985,400,540
Beginning balance at Dec. 31, 2021	$ 21,223	20,971	$ 35,129		(9,284)	(20)	252
Beginning balance, treasury (in shares) at Dec. 31, 2021	477,743,590			477,743,590
Beginning balance, treasury at Dec. 31, 2021	$ 4,854			$ (4,854)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	478	478			478
Common stock issued, net (in shares)			2,072,050
Common stock issued, net	(407)	(407)	$ (407)
Treasury stock disposition (in shares)				(40,000,000)
Treasury stock disposition	407	407		$ 407
Stock-based compensation amortization	4	4	$ 4
Preferred stock dividend requirement of subsidiary in arrears	(59)	(59)			(59)
Preferred stock dividend requirement of subsidiary	(2)	(2)			(2)
Ending balance (in shares) at Mar. 31, 2022			1,987,472,590
Ending balance at Mar. 31, 2022	$ 21,644	21,392	$ 34,726		(8,867)	(20)	252
Ending balance, treasury (in shares) at Mar. 31, 2022				437,743,590
Ending balance, treasury at Mar. 31, 2022				$ (4,447)
Beginning balance (in shares) at Dec. 31, 2021	1,985,400,540		1,985,400,540
Beginning balance at Dec. 31, 2021	$ 21,223	20,971	$ 35,129		(9,284)	(20)	252
Beginning balance, treasury (in shares) at Dec. 31, 2021	477,743,590			477,743,590
Beginning balance, treasury at Dec. 31, 2021	$ 4,854			$ (4,854)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	838
Other comprehensive income (loss)	$ (5)
Ending balance (in shares) at Jun. 30, 2022	1,987,668,220		1,987,668,220
Ending balance at Jun. 30, 2022	$ 22,019	21,767	$ 34,141		(8,511)	(25)	252
Ending balance, treasury (in shares) at Jun. 30, 2022	377,743,590			377,743,590
Ending balance, treasury at Jun. 30, 2022	$ 3,838			$ (3,838)
Beginning balance (in shares) at Mar. 31, 2022			1,987,472,590
Beginning balance at Mar. 31, 2022	21,644	21,392	$ 34,726		(8,867)	(20)	252
Beginning balance, treasury (in shares) at Mar. 31, 2022				437,743,590
Beginning balance, treasury at Mar. 31, 2022				$ (4,447)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	360	360			360
Other comprehensive income (loss)	(5)	(5)				(5)
Common stock issued, net (in shares)			195,630
Common stock issued, net	(609)	(609)	$ (609)
Treasury stock disposition (in shares)				(60,000,000)
Treasury stock disposition	609	609		$ 609
Stock-based compensation amortization	24	24	$ 24
Preferred stock dividend requirement of subsidiary	$ (4)	(4)			(4)
Ending balance (in shares) at Jun. 30, 2022	1,987,668,220		1,987,668,220
Ending balance at Jun. 30, 2022	$ 22,019	$ 21,767	$ 34,141		$ (8,511)	$ (25)	$ 252
Ending balance, treasury (in shares) at Jun. 30, 2022	377,743,590			377,743,590
Ending balance, treasury at Jun. 30, 2022	$ 3,838			$ (3,838)