Consolidated Statement of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Net income	$ 5,388	$ 3,985	$ 4,143
Other comprehensive income (loss), before tax and net of reclassifications into Net income:
Net unrealized gains (losses) on non-OTTI securities	16	(369)	(569)
Net unrealized gains (losses) on OTTI securities	172	63	(13)
Net unrealized gains (losses) on cash flow hedge derivatives	(287)	(153)	127
Pension and other postretirement benefit plan adjustments	169	1	(54)
Other	61	(59)	(42)
Other comprehensive income (loss), before tax and net of reclassifications into Net income	131	(517)	(551)
Income tax benefit (expense) related to items of other comprehensive income	(14)	122	178
Other comprehensive income (loss), after tax and net of reclassifications into Net income	117	(395)	(373)
Comprehensive income	5,505	3,590	3,770
Less: Comprehensive income attributable to noncontrolling interests	50	82	37
Comprehensive income attributable to PNC	$ 5,455	$ 3,508	$ 3,733