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, 2024		$ 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			0	(16)
Other comprehensive (loss) income, 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
Beginning of period at Dec. 31, 2025	$ 16,674	142	0	16,658	(126)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock repurchased		0		63
Net earnings	875			875
Dividends declared				(330)
Stock compensation			8	(44)
Other comprehensive (loss) income, net of tax	(5)				(5)
End of period at Mar. 31, 2026	$ 17,115	$ 142	$ 8	$ 17,096	$ (131)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash dividends declared per share	$ 2.31