CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017		Dec. 31, 2016
Statement Of Income And Comprehensive Income
Net income (loss)	$ 2,193	$ 2,180	[1]	$ 1,543	[1]
Other Comprehensive Income (Loss), Net of Tax
Unrealized holding gains (losses) on available-for-sale securities arising during the year	(371)	21		(130)
Reclassification adjustment for net (gains) losses included in net income	9	4		(7)
Unrealized holding gains (losses) on cash flow hedge derivatives arising during the year	169	(7)		19
Reclassification adjustment for net gains on cash flow hedge derivatives included in net income	2	(12)		(31)
Net actuarial gain (loss) arising during the year	1	1		(1)
Reclassification of amounts to net periodic benefit costs	7	7		12
Other comprehensive income (loss), Net of Tax	(183)	14		(138)
Comprehensive income	2,010	2,194		1,405
Comprehensive income attributable to noncontrolling interests	0	0		(4)
Comprehensive income attributable to Bancorp	$ 2,010	$ 2,194		$ 1,409

[1] Effective in the fourth quarter of 2018, Fifth Third retrospectively applied a change in its accounting policy for investments in affordable housing projects that qualify for LIHTC in accordance with ASU 2014-01. Refer to Note 1 for additional information.