Subsequent Events	12 Months Ended
Dec. 31, 2020
Subsequent Events [Abstract]
Subsequent Events	Subsequent EventsOn January 14, 2021, we announced that we will redeem on March 15, 2021 an aggregate of $500 million, or 5,000 of the 7,500 outstanding shares of our non-cumulative perpetual preferred stock, Series F, for cash at a redemption price of $100,000 per share (equivalent to $1,000 per depositary share) plus all declared and unpaid dividends. A cash dividend of $953.38 per share of Series F Preferred Stock (or approximately $9.5338 per depositary share) has been declared for the period from December 15, 2020 up to but not including March 15, 2021 (the “March Dividend”). The March Dividend will be paid separately to the holders of record of the Series F Preferred Stock as of March 1, 2021 in the customary manner. Accordingly, there will not be any declared and unpaid dividends included in the redemption price

The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 855
-URI http://asc.fasb.org/topic&trid=2122774

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 855
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6842918&loc=SL6314017-165662

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