Summarizes the Bancorp's Recorded Investment in Portfolio Loans and Leases by Age and Class (Detail) (USD $) In Millions, unless otherwise specified	Jun. 30, 2014		Dec. 31, 2013
Financing Receivable, Recorded Investment, Past Due
Current Loans and Leases	$ 89,612	[1],[2]	$ 87,534	[1],[3]
30-89 Days Past Due	274	[1],[2]	345	[1],[3]
90 Days and Greater	499	[1],[2]	643	[1],[3]
Total Past Due	773	[2]	988	[3]
Total Loans and Leases	90,385	[2]	88,522	[3]
90-Days past Due and Still Accruing	94	[2]	103	[3]
Commercial Portfolio Segment
Financing Receivable, Recorded Investment, Past Due
Total Loans and Leases	54,095	[4]	52,046	[5]
Commercial Portfolio Segment | Commercial and Industrial Loans
Financing Receivable, Recorded Investment, Past Due
Current Loans and Leases	41,188	[1]	39,118	[1]
30-89 Days Past Due	19	[1]	53	[1]
90 Days and Greater	92	[1]	145	[1]
Total Past Due	111		198
Total Loans and Leases	41,299		39,316
Commercial Portfolio Segment | Commercial Mortgage Loans, Owner Occupied
Financing Receivable, Recorded Investment, Past Due
Current Loans and Leases	4,088	[1]	4,423	[1]
30-89 Days Past Due	8	[1]	15	[1]
90 Days and Greater	69	[1]	69	[1]
Total Past Due	77		84
Total Loans and Leases	4,165		4,507
Commercial Portfolio Segment | Commercial Mortgage Loans, Non Owner Occupied
Financing Receivable, Recorded Investment, Past Due
Current Loans and Leases	3,603	[1]	3,515	[1]
30-89 Days Past Due	3	[1]	9	[1]
90 Days and Greater	34	[1]	35	[1]
Total Past Due	37		44
Total Loans and Leases	3,640		3,559
Commercial Portfolio Segment | Commercial Construction
Financing Receivable, Recorded Investment, Past Due
Current Loans and Leases	1,414	[1]	1,010	[1]
30-89 Days Past Due	2	[1]
90 Days and Greater	8	[1]	29	[1]
Total Past Due	10		29
Total Loans and Leases	1,424		1,039
Commercial Portfolio Segment | Commercial Leases
Financing Receivable, Recorded Investment, Past Due
Current Loans and Leases	3,565	[1]	3,620	[1]
90 Days and Greater	2	[1]	5	[1]
Total Past Due	2		5
Total Loans and Leases	3,567		3,625
Residential Mortgage
Financing Receivable, Recorded Investment, Past Due
Current Loans and Leases	12,300	[1],[2],[6]	12,284	[1],[3],[7]
30-89 Days Past Due	76	[1],[2],[6]	73	[1],[3],[7]
90 Days and Greater	177	[1],[2],[6]	231	[1],[3],[7]
Total Past Due	253	[2],[6]	304	[3],[7]
Total Loans and Leases	12,553	[2],[6]	12,588	[3],[7]
90-Days past Due and Still Accruing	60	[2],[6]	66	[3],[7]
Consumer Portfolio Segment
Financing Receivable, Recorded Investment, Past Due
Total Loans and Leases	23,737	[4]	23,888	[5]
Consumer Portfolio Segment | Home Equity
Financing Receivable, Recorded Investment, Past Due
Current Loans and Leases	8,893	[1]	9,058	[1]
30-89 Days Past Due	85	[1]	102	[1]
90 Days and Greater	78	[1]	86	[1]
Total Past Due	163		188
Total Loans and Leases	9,056		9,246
Consumer Portfolio Segment | Automobile Loans
Financing Receivable, Recorded Investment, Past Due
Current Loans and Leases	11,993	[1]	11,919	[1]
30-89 Days Past Due	48	[1]	55	[1]
90 Days and Greater	9	[1]	10	[1]
Total Past Due	57		65
Total Loans and Leases	12,050		11,984
90-Days past Due and Still Accruing	8		8
Consumer Portfolio Segment | Credit Card
Financing Receivable, Recorded Investment, Past Due
Current Loans and Leases	2,200	[1]	2,225	[1]
30-89 Days Past Due	31	[1]	36	[1]
90 Days and Greater	30	[1]	33	[1]
Total Past Due	61		69
Total Loans and Leases	2,261		2,294
90-Days past Due and Still Accruing	26		29
Consumer Portfolio Segment | Consumer Other Financing Receivable
Financing Receivable, Recorded Investment, Past Due
Current Loans and Leases	368	[1]	362	[1]
30-89 Days Past Due	2	[1]	2	[1]
Total Past Due	2		2
Total Loans and Leases	$ 370		$ 364

[1] Includes accrual and nonaccrual loans and leases.

[2] Excludes $99 of loans measured at fair value.

[3] Excludes $92 of loans measured at fair value.

[4] Excludes $99 of residential mortgage loans measured at fair value, and includes $880 of leveraged leases, net of unearned income.

[5] Excludes $92 of residential mortgage loans measured at fair value, and includes $881 of leveraged leases, net of unearned income. Includes five restructured loans at December 31, 2013 associated with a consolidated VIE in which the Bancorp has no continuing credit risk due to the risk being assumed by a third party, with a recorded investment of $28 and an allowance of $11.

[6] Information for current residential mortgage loans includes loans whose repayments are insured by the Federal Housing Administration or guaranteed by the Department of Veterans Affairs. As of June 30, 2014, $90 of these loans were 30-89 days past due and $333 were 90 days or more past due. The Bancorp recognized $2 and $7 of losses on these insured of guaranteed loans during the three and six months ended June 30, 2014, respectively, due to claim denials and curtailments associated with these loans.

[7] Information for current residential mortgage loans includes loans whose repayments are insured by the Federal Housing Administration or guaranteed by the Department of Veterans Affairs. As of December 31, 2013, $81 of these loans were 30-89 days past due and $378 were 90 days or more past due. The Bancorp recognized $5 of losses on these insured or guaranteed loans for the year ended December 31, 2013 due to claim denials and curtailments associated with these loans.