Consolidated Statements of Changes in Equity (Unaudited) - PAC - USD ($) $ in Millions	Total	PAC	PAC Preferred Stock	PAC Common Stock	PAC Additional Paid-in Capital	PAC Retained Earnings	PAC Accumulated Other Comprehensive (Loss) Income, Net
Balance at Dec. 31, 2022		$ 10,741	$ 2	$ 0	$ 4,479	$ 6,269	$ (9)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	$ 989	(120)				(120)
Common stock dividends declared		(300)				(300)
Balance at Mar. 31, 2023		10,321	2	0	4,479	5,849	(9)
Balance at Dec. 31, 2023	48,434	9,972	2	0	4,479	5,501	(10)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	653	121				121
Balance at Mar. 31, 2024	$ 48,959	$ 10,093	$ 2	$ 0	$ 4,479	$ 5,622	$ (10)