CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Millions	Total	Common Stock	Additional Paid In Capital	Accumulated Other Comprehensive Loss	Retained Earnings	Common Stock Held In Treasury
Beginning balance at Dec. 31, 2021	$ 22,180	$ 206	$ 6,087	$ (12)	$ 15,919	$ (20)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	390				390
Common stock dividends declared	(1,026)				(1,026)
Other Comprehensive Loss	(1)			(1)
Common Stock Issued Under Stock Plans	0		0
Restricted Stock and Restricted Stock Units, Net	0		(3)			3
Stock-Based Compensation Expenses	35		35
Change in Treasury Stock - Stock Compensation Plans, Net	(38)		(24)			(14)
Ending balance at Mar. 31, 2022	21,540	206	6,095	(13)	15,283	(31)
Beginning balance at Dec. 31, 2022	24,779	206	6,187	(8)	18,472	(78)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	2,023				2,023
Common stock dividends declared	(1,072)				(1,072)
Other Comprehensive Loss	0			0
Common Stock Issued Under Stock Plans	0		0
Restricted Stock and Restricted Stock Units, Net	0		1			(1)
Stock-Based Compensation Expenses	34		34
Treasury Stock Repurchased	(310)					(310)
Change in Treasury Stock - Stock Compensation Plans, Net	(7)		(3)			(4)
Ending balance at Mar. 31, 2023	$ 25,447	$ 206	$ 6,219	$ (8)	$ 19,423	$ (393)