Shareholders' Equity - Narrative (Details) shares in Thousands, $ in Millions	3 Months Ended
Mar. 31, 2020 USD ($) shares
Class of Stock [Line Items]
Preferred Stock, Value, Redeemed	$ (503)
Series K
Class of Stock [Line Items]
Stock Redeemed or Called During Period, Shares \| shares	5
Preferred Stock, Value, Redeemed	$ 500

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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- Definition

Number of stock bought back by the entity at the exercise price or redemption price.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644

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- Definition

Equity impact of the value of stock bought back by the entity at the exercise price or redemption price.

+ References

+ Details

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