Condensed Consolidated Statements of Changes in Shareholders' Equity (Unaudited) - USD ($) $ in Millions	Total	Common stock	Paid-in capital	Retained earnings	Accumulated other comprehensive loss
Beginning of period at Dec. 31, 2023		$ 150	$ 0	$ 14,773	$ (128)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock repurchased		2		1,186
Net earnings	$ 944			944
Dividends declared				(279)
Stock compensation				(34)
Other comprehensive income (loss), net of tax	(15)				(15)
End of period at Mar. 31, 2024	$ 14,223	148	0	14,218	(143)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash dividends declared per share	$ 1.87
Beginning of period at Dec. 31, 2024	$ 15,290	145	0	15,297	(152)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock repurchased		1		481
Net earnings	481			481
Dividends declared				(299)
Stock compensation				(16)
Other comprehensive income (loss), net of tax	10				10
End of period at Mar. 31, 2025	$ 14,984	$ 144	$ 0	$ 14,982	$ (142)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash dividends declared per share	$ 2.06