Consolidated Balance Sheets - USD ($) shares in Thousands, $ in Millions	Jun. 30, 2019	Dec. 31, 2018
Held-to-maturity, fair value	$ 698
ASSETS
Cash and due from banks	538	$ 614
Money market investments:
Interest-bearing deposits	634	619
Federal funds sold and security resell agreements	620	1,461
Investment securities:
Available-for-sale, at fair value	14,672	14,737
Trading account, at fair value	148	106
Total investment securities	15,515	15,617
Loans held for sale	105	93
Loans held for investment, net of allowance
Loans and leases, net of unearned income and fees	48,617	46,714
Less allowance for loan losses	503	495
Loans held for investment, net of allowance	48,114	46,219
Other noninterest-bearing investments	1,056	1,046
Premises, equipment and software, net	1,133	1,124
Goodwill and intangibles	1,014	1,015
Other real estate owned	5	4
Other assets	1,331	934
Total assets	70,065	68,746
Liabilities and Equity [Abstract]
Noninterest-bearing demand	22,947	23,645
Interest-bearing:
Savings and money market	26,470	26,120
Total deposits	54,332	54,101
Federal funds purchased and other short-term borrowings	6,023	5,653
Long-term Debt	1,236	724
Reserve for unfunded lending commitments	60	57
Other liabilities	815	633
Liabilities	62,466	61,168
Shareholders' equity:
Preferred stock, without par value	566	566
Additional Paid-in Capital	3,271	3,806
Retained earnings	3,737	3,456
Accumulated other comprehensive income (loss)	25	(250)
Stockholders' Equity	7,599	7,578
Total liabilities and shareholders' equity	$ 70,065	$ 68,746
Preferred Stock, Shares Authorized	4,400	4,400
Common Stock, Shares Authorized	350,000	350,000
Common Stock, Shares, Issued	176,935	187,554
Common stock, outstanding shares	176,935	187,554
Fair Value, Inputs, Level 2 [Member]
Investment securities:
Held-to-maturity, at amortized cost	$ 695	$ 774
Trading account, at fair value	130	92
Interest-bearing:
Time	4,915	4,336
Long-term Debt	1,236	724
Estimate of Fair Value Measurement [Member] \| Fair Value, Inputs, Level 2 [Member]
Held-to-maturity, fair value	698	767
Interest-bearing:
Time	4,923	4,319
Long-term Debt	$ 1,248	$ 727

Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 11
-URI http://asc.fasb.org/extlink&oid=118930883&loc=d3e637-108580

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 14A
-URI http://asc.fasb.org/extlink&oid=118930883&loc=SL7669686-108580

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 14
-URI http://asc.fasb.org/extlink&oid=118930883&loc=d3e681-108580