Consolidated Balance Sheets (Parenthetical) - USD ($) shares in Thousands, $ in Millions		Sep. 30, 2018		Dec. 31, 2017
Debt Securities, Held-to-maturity, Fair Value		$ 0		$ 0
Loans Held-for-sale, Fair Value Disclosure		1,822		1,577
Loans Receivable, Fair Value Disclosure		$ 168		196
Other Assets, Fair Value Disclosure				$ 56
Common stock, par value		$ 1.00		$ 1.00
Loans and Leases Receivable, Gross	[1]	$ 147,215		$ 143,181
Long-term Debt	[2]	$ 14,289		$ 9,785
Common Stock, Shares, Outstanding	[3]	458,626		470,931
Variable Interest Entity, Primary Beneficiary [Member]
Loans and Leases Receivable, Gross		$ 159		$ 179
Long-term Debt		168		189
Treasury Stock and Other
Stockholders' Equity Attributable to Noncontrolling Interest		101		103
Consumer Portfolio Segment [Member]
Loans Receivable, Fair Value Disclosure		168		196
Loans and Leases Receivable, Gross		69,257		67,704
Residential Portfolio Segment [Member]
Loans and Leases Receivable, Gross		$ 38,505		$ 38,620
Restricted Stock [Member]
Common Stock, Shares, Outstanding		7		9
Available-for-sale Securities [Member]
Pledged Assets Separately Reported, Securities Pledged as Collateral, at Fair Value		$ 164		$ 223
Fair Value, Measurements, Recurring [Member]
Loans Held-for-sale, Fair Value Disclosure		1,822		1,577
Loans Receivable, Fair Value Disclosure		168		196
Servicing Asset at Fair Value, Amount		2,062		1,710
Other Assets, Fair Value Disclosure		92	[4]	56	[5]
Long-term Debt, Fair Value		235		530
Brokered Time Deposits [Member] | Fair Value, Measurements, Recurring [Member]
Deposits, Fair Value Disclosure		$ 384		$ 236

[1] Includes loans of consolidated VIEs of $159 million and $179 million at September 30, 2018 and December 31, 2017, respectively.

[2] Includes debt of consolidated VIEs of $168 million and $189 million at September 30, 2018 and December 31, 2017, respectively.

[3] Includes restricted shares of 7 thousand and 9 thousand at September 30, 2018 and December 31, 2017, respectively.

[4] Beginning January 1, 2018, the Company reclassified equity securities previously presented in Securities available for sale to Other assets on the Consolidated Balance Sheets. Reclassifications have been made to previously reported amounts for comparability. See Note 9, "Other Assets," for additional information.

[5] Beginning January 1, 2018, the Company reclassified equity securities previously presented in Securities available for sale to Other assets on the Consolidated Balance Sheets. Reclassifications have been made to previously reported amounts for comparability. See Note 9, "Other Assets," for additional information.