Consolidated Statement of Changes in Equity - USD ($) shares in Millions, $ in Millions		Total		Cumulative Effect, Period of Adoption, Adjustment	[6]	Cumulative Effect, Period of Adoption, Adjusted Balance	[1]	Common stock		Common stock Cumulative Effect, Period of Adoption, Adjusted Balance		Capital Surplus - Preferred Stock		Capital Surplus - Preferred Stock Cumulative Effect, Period of Adoption, Adjusted Balance	[1]	Capital Surplus - Common Stock and Other		Capital Surplus - Common Stock and Other Cumulative Effect, Period of Adoption, Adjusted Balance	[1]	Retained Earnings		Retained Earnings Cumulative Effect, Period of Adoption, Adjustment	[6]	Retained Earnings Cumulative Effect, Period of Adoption, Adjusted Balance	[1]	Accumulated other comprehensive income		Accumulated other comprehensive income Cumulative Effect, Period of Adoption, Adjusted Balance	[1]	Treasury Stock		Treasury Stock Cumulative Effect, Period of Adoption, Adjusted Balance	[1]	Noncontrolling Interests		Noncontrolling Interests Cumulative Effect, Period of Adoption, Adjusted Balance	[1]
Beginning Balance (in shares) at Dec. 31, 2021	[1]							420
Common Stock
Treasury stock activity, shares								(19)
Ending Balance, (in shares) at Dec. 31, 2022	[1]							401		401
Equity, Beginning Balance at Dec. 31, 2021	[1]	$ 55,726						$ 2,713				$ 5,009				$ 12,448				$ 50,228						$ 409				$ (15,112)				$ 31
Common Stock
Accounting Standards Update [Extensible Enumeration]		Accounting Standards Update 2022-02 [Member]
Net income		$ 6,113																		6,041														72
Other comprehensive income (loss), net of tax		(10,581)																								(10,581)
Common		(2,391)																		(2,391)
Preferred		(301)																		(301)
Preferred stock discount accretion												5								(5)
Preferred stock issuance	[2],[3]	2,232										2,232
Common stock activity	[4]	31						1								30
Treasury stock activity		(3,543)														61														(3,604)
Preferred stock redemption	[5]	(1,500)										(1,500)
Other		26														91																		(65)
Equity, Ending Balance at Dec. 31, 2022		45,812	[1]	$ 26		$ 45,838		$ 2,714	[1]	$ 2,714	[1]	5,746	[1]	$ 5,746		12,630	[1]	$ 12,630		53,572	[1]	$ 26		$ 53,598		(10,172)	[1]	$ (10,172)		(18,716)	[1]	$ (18,716)		38	[1]	$ 38
Common Stock
Treasury stock activity, shares								(3)
Ending Balance, (in shares) at Dec. 31, 2023	[1]							398
Common Stock
Net income		5,647																		5,578														69
Other comprehensive income (loss), net of tax		2,460																								2,460
Common		(2,461)																		(2,461)
Preferred		(417)																		(417)
Preferred stock discount accretion												8								(8)
Preferred stock issuance	[7]	1,487										1,487
Common stock activity	[4]	32						$ 2								30
Treasury stock activity		(415)														78														(493)
Preferred stock redemption	[8]	(1,000)										(1,000)
Other		(30)														41																		(71)
Equity, Ending Balance at Dec. 31, 2023	[1]	51,141						$ 2,716				6,241				12,779				56,290						(7,712)	[9]			(19,209)				36
Common Stock
Treasury stock activity, shares								(2)
Ending Balance, (in shares) at Dec. 31, 2024	[1]							396
Common Stock
Net income		5,953																		5,889														64
Other comprehensive income (loss), net of tax		1,147																								1,147
Common		(2,537)																		(2,537)
Preferred		(352)																		(352)
Preferred stock discount accretion												8								(8)
Common stock activity	[4]	32						$ 1								31
Treasury stock activity		(420)														90														(510)
Preferred stock redemption	[10]	(500)										(500)
Other		5														61																		(56)
Equity, Ending Balance at Dec. 31, 2024	[1]	$ 54,469						$ 2,717				$ 5,749				$ 12,961				$ 59,282						$ (6,565)	[9]			$ (19,719)				$ 44

[1] The par value of our preferred stock outstanding was less than $0.5 million at each date and, therefore, is excluded from this presentation.

[2] On April 26, 2022, PNC issued 1,000,000 depositary shares each representing 1/100th ownership in a share of 6.000% fixed-rate reset non-cumulative perpetual preferred stock, Series U, with a par value of $1 per share.

[3] On August 19, 2022, PNC issued 1,250,000 depositary shares each representing 1/100th ownership in a share of 6.200% fixed-rate reset non-cumulative perpetual preferred stock, Series V, with a par value of $1 per share.

[4] Common stock activity totaled less than 0.5 million shares issued.

[5] On November 1, 2022, PNC redeemed all 15,000 shares of its Series P preferred stock, as well as all 60,000,000 depositary shares each representing a fractional interest in such shares.

[6] Represents the cumulative effect of adopting ASU 2022-02.

[7] On February 7, 2023, PNC issued 1,500,000 depositary shares each representing 1/100th ownership in a share of 6.250% fixed-rate reset non-cumulative perpetual preferred stock, Series W, with a par value of $1 per share.

[8] On November 1, 2023, PNC redeemed all 10,000 shares of its Series O preferred stock, as well as all 1,000,000 depositary shares each representing a fractional interest in such shares.

[9] AOCI included pretax losses of $275 million and $293 million from derivatives that hedged the purchase of investment securities classified as held-to-maturity at December 31, 2024 and December 31, 2023, respectively.

[10] On December 2, 2024, PNC redeemed all 5,000 shares of its Series R preferred stock, as well as all 500,000 depositary shares each representing a fractional interest in such shares.