Consolidated Statements of Comprehensive Income - PAC - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Net income attributable to parent	$ 5,790	$ 6,943	$ 2,950
Other comprehensive (loss) income, net of tax:
Unrecognized amounts on retirement benefits, net of tax	174	(65)	(59)
Comprehensive income (loss) attributable to parent	6,002	7,097	3,189
PAC
Net income attributable to parent	888	739	771
Other comprehensive (loss) income, net of tax:
Unrecognized amounts on retirement benefits, net of tax	2	(3)	(3)
Comprehensive income (loss) attributable to parent	$ 890	$ 736	$ 768