Consolidated Statements of Changes in Equity (Unaudited) - PAC - USD ($) $ in Millions	Total	Accumulated Other Comprehensive (Loss) Income, Net	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, 2021			$ 9,913	$ 2	$ 0	$ 4,479	$ 5,449	$ (17)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	$ 1,926		621				621
Other comprehensive income (loss)	(1,043)	$ (1,043)	1					1
Common stock dividends declared			(100)				(100)
Balance at Sep. 30, 2022			10,435	2	0	4,479	5,970	(16)
Balance at Jun. 30, 2022			10,026	2	0	4,479	5,561	(16)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(842)		409				409
Other comprehensive income (loss)	(595)	(595)
Balance at Sep. 30, 2022			10,435	2	0	4,479	5,970	(16)
Balance at Dec. 31, 2022	46,832		10,741	2	0	4,479	6,269	(9)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	2,558		(666)				(666)
Other comprehensive income (loss)	5	5
Common stock dividends declared			(300)				(300)
Balance at Sep. 30, 2023	48,643		9,775	2	0	4,479	5,303	(9)
Balance at Jun. 30, 2023			10,427	2	0	4,479	5,955	(9)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	494		(652)				(652)
Other comprehensive income (loss)	(299)	$ (299)
Balance at Sep. 30, 2023	$ 48,643		$ 9,775	$ 2	$ 0	$ 4,479	$ 5,303	$ (9)