Consolidated Balance Sheets (Parenthetical) - USD ($) shares in Thousands, $ in Millions		Mar. 31, 2017	Dec. 31, 2016
Loans Held-for-sale, Fair Value Disclosure		$ 1,819	$ 3,540
Loans Receivable, Fair Value Disclosure		221	222
Servicing Asset at Fair Value, Amount		1,645	1,572
Long-term Debt, Fair Value		$ 771	$ 963
Common stock, par value		$ 1.00	$ 1.00
Loans and Leases Receivable, Gross	[1]	$ 143,529	$ 143,298
Long-term Debt	[2]	$ 10,496	$ 11,748
Common Stock, Shares, Outstanding	[3]	485,712	491,188
Variable Interest Entity, Primary Beneficiary [Member]
Loans and Leases Receivable, Gross		$ 201	$ 211
Long-term Debt		214	222
Treasury Stock and Other
Stockholders' Equity Attributable to Noncontrolling Interest		101	103
Residential Portfolio Segment [Member]
Loans Receivable, Fair Value Disclosure		221	222
Loans and Leases Receivable, Gross		$ 38,550	$ 38,990
Restricted Stock [Member]
Common Stock, Shares, Outstanding		11	11
Trading Securities [Member]
Pledged Assets Separately Reported, Securities Pledged as Collateral, at Fair Value		$ 1,229	$ 1,437
Available-for-sale Securities [Member]
Pledged Assets Separately Reported, Securities Pledged as Collateral, at Fair Value		100	0
Brokered Time Deposits [Member]
Deposits, Fair Value Disclosure		$ 128	$ 78

[1] Includes loans of consolidated VIEs of $201 million and $211 million at March 31, 2017 and December 31, 2016, respectively.

[2] Includes debt of consolidated VIEs of $214 million and $222 million at March 31, 2017 and December 31, 2016, respectively.

[3] Includes restricted shares of 11 thousand and 11 thousand at March 31, 2017 and December 31, 2016, respectively.