Consolidated Balance Sheets (Parenthetical) - USD ($) shares in Thousands, $ in Millions		Jun. 30, 2019	Dec. 31, 2018
Loans Receivable, Fair Value Disclosure		$ 127	$ 163
Common stock, par value		$ 1.00	$ 1.00
Loans and Leases Receivable, Gross		$ 156,589	$ 151,839
Long-term Debt	[1]	$ 20,200	$ 15,072
Common Stock, Shares, Outstanding	[2]	443,858	446,888
Variable Interest Entity, Primary Beneficiary [Member]
Loans and Leases Receivable, Gross		$ 141	$ 153
Long-term Debt		149	161
Treasury Stock and Other
Stockholders' Equity Attributable to Noncontrolling Interest		$ 103	$ 103
Restricted Stock [Member]
Common Stock, Shares, Outstanding		4	7
Available-for-sale Securities [Member]
Pledged Assets Separately Reported, Securities Pledged as Collateral, at Fair Value		$ 212	$ 222
Fair Value, Measurements, Recurring [Member]
Loans Held-for-sale, Fair Value Disclosure		1,695	1,200
Loans Receivable, Fair Value Disclosure		127	163
Servicing Asset at Fair Value, Amount		1,717	1,983
Other Assets, Fair Value Disclosure		87	95
Long-term Debt, Fair Value		302	289
Loans and Leases Receivable, Gross		156,589	151,839
Brokered Time Deposits [Member] | Fair Value, Measurements, Recurring [Member]
Deposits, Fair Value Disclosure		$ 524	$ 403

[1] Includes debt of consolidated VIEs of $149 million and $161 million at June 30, 2019 and December 31, 2018, respectively.

[2] Includes restricted shares of 4 thousand and 7 thousand at June 30, 2019 and December 31, 2018, respectively.