Consolidated Statement of Comprehensive Income - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Net income from continuing operations	$ 1,826	$ 759
Other comprehensive income (loss), before tax and net of reclassifications into Net income
Net change in Other	1	8
Other comprehensive income (loss), before tax and net of reclassifications into Net income	(1,938)	2,251
Income tax benefit (expense) related to items of other comprehensive income	458	(532)
Other comprehensive income (loss), after tax and net of reclassifications into Net income	(1,480)	1,719
Net income from discontinued operations		156
Other comprehensive income (loss), after tax and net of reclassifications into Net income	(1,480)	1,719
Comprehensive income	346	2,634
Less: Comprehensive income attributable to noncontrolling interests	10	7
Comprehensive income attributable to PNC	336	2,627
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		(34)
Income tax benefit (expense) related to items of other comprehensive income		8
Other comprehensive income (loss), after tax and net of reclassifications into Net income		(26)
Continuing Operations
Other comprehensive income (loss), before tax and net of reclassifications into Net income
Net change in debt securities	(1,194)	1,480
Net change in cash flow hedge derivatives	(775)	785
Pension and other postretirement benefit plan adjustments	30	12
Net change in Other	1	8
Other comprehensive income (loss), before tax and net of reclassifications into Net income	(1,938)	2,285
Income tax benefit (expense) related to items of other comprehensive income	458	(540)
Other comprehensive income (loss), after tax and net of reclassifications into Net income	$ (1,480)	$ 1,745