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, 2020			$ 9,173	$ 2	$ 0	$ 4,479	$ 4,711	$ (19)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	$ 4		169				169
Other comprehensive income (loss)	112	$ 112
Balance at Mar. 31, 2021			9,342	2	0	4,479	4,880	(19)
Balance at Dec. 31, 2021	46,694		9,913	2	0	4,479	5,449	(17)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(129)		130				130
Other comprehensive income (loss)	(18)	$ (18)	1					1
Balance at Mar. 31, 2022	$ 46,530		$ 10,044	$ 2	$ 0	$ 4,479	$ 5,579	$ (16)