Consolidated Statement of Comprehensive Income (USD $)	3 Months Ended				9 Months Ended
	Sep. 30, 2014		Sep. 30, 2013		Sep. 30, 2014		Sep. 30, 2013
Net income (a)	$ 1,038,000,000	[1]	$ 1,028,000,000	[1]	$ 3,150,000,000	[1]	$ 3,138,000,000	[1]
Other Comprehensive Income (Loss), before Tax [Abstract]
Net unrealized gains (losses) on non-OTTI securities	(132,000,000)		(68,000,000)		269,000,000		(1,031,000,000)
Net unrealized gains (losses) on OTTI securities	15,000,000		58,000,000		122,000,000		154,000,000
Net unrealized gains (losses) on cash flow hedge derivatives	(81,000,000)		(31,000,000)		(5,000,000)		(419,000,000)
Pension and other postretirement benefit plan adjustments	(2,000,000)		21,000,000		89,000,000		74,000,000
Other	(12,000,000)		3,000,000		(5,000,000)		(10,000,000)
Other comprehensive income (loss), before tax and net of reclassifications into Net income	(212,000,000)		(17,000,000)		470,000,000		(1,232,000,000)
Income tax benefit (expense) related to items of other comprehensive income	58,000,000		19,000,000		(179,000,000)		445,000,000
Other comprehensive income (loss), after tax and net of reclassifications into Net income	(154,000,000)		2,000,000		291,000,000		(787,000,000)
Comprehensive income	884,000,000		1,030,000,000		3,441,000,000		2,351,000,000
Less: Comprehensive income (loss) attributable to noncontrolling interests (a)	1,000,000	[1]	2,000,000	[1]	2,000,000	[1]	(2,000,000)	[1]
Comprehensive income attributable to PNC	$ 883,000,000		$ 1,028,000,000		$ 3,439,000,000		$ 2,353,000,000

[1] Amounts for 2013 periods have been updated to reflect the first quarter 2014 adoption of Accounting Standards Update (ASU) 2014-01 related to investments in low income housing tax credits.