Consolidated Statement of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Net income from continuing operations	$ 6,113	$ 5,725	$ 3,003
Other comprehensive income (loss), before tax and net of reclassifications into Net income
Net change in Other	(5)	4	10
Other comprehensive income (loss), before tax and net of reclassifications into Net income	(13,787)	(3,087)	2,548
Income tax benefit (expense) related to items of other comprehensive income	3,206	726	(577)
Other comprehensive income (loss), after tax and net of reclassifications into Net income	(10,581)	(2,361)	1,971
Net income from discontinued operations			4,555
Other comprehensive income (loss), after tax and net of reclassifications into Net income	(10,581)	(2,361)	1,971
Comprehensive income (loss)	(4,468)	3,364	9,529
Less: Comprehensive income attributable to noncontrolling interests	72	51	41
Comprehensive income (loss) attributable to PNC	(4,540)	3,313	9,488
Discontinued Operations, Disposed of by Sale
Other comprehensive income (loss), before tax and net of reclassifications into Net income
Other comprehensive income (loss), before tax and net of reclassifications into Net income			148
Income tax benefit (expense) related to items of other comprehensive income			(33)
Other comprehensive income (loss), after tax and net of reclassifications into Net income			115
Continuing Operations
Other comprehensive income (loss), before tax and net of reclassifications into Net income
Net change in debt securities	(10,143)	(2,451)	1,811
Net change in cash flow hedge derivatives	(3,276)	(1,126)	497
Pension and other postretirement benefit plan adjustments	(363)	486	82
Net change in Other	(5)	4	10
Other comprehensive income (loss), before tax and net of reclassifications into Net income	(13,787)	(3,087)	2,400
Income tax benefit (expense) related to items of other comprehensive income	3,206	726	(544)
Other comprehensive income (loss), after tax and net of reclassifications into Net income	$ (10,581)	$ (2,361)	$ 1,856