Credit Loss, Expense (Reversal)

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- Definition

Debt Securities, Held-To-Maturity, Percent Of Portfolio

+ References

No definition available.

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- Definition

Held To Maturity Securities, Transferred From Available For Sale

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- Definition

Number of Securities, Unrealized Losses Position

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No definition available.

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- Definition

Percentage of the corporate debt portfolio backed by guarantees provided by U.S. and non-U.S. governmental entities.

+ References

No definition available.

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- Definition

Amount of unrealized losses.

+ References

No definition available.

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- Definition

Securities, Continuous Unrealized Loss Position, Fair Value

+ References

No definition available.

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- Definition

Amount of accumulated unrealized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 6
-Subparagraph (a)(2)
-URI http://asc.fasb.org/extlink&oid=118939692&loc=d3e27290-111563

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 30
-Section 50
-Paragraph 4
-Subparagraph (a)(2)
-URI http://asc.fasb.org/extlink&oid=118955579&loc=SL82922888-210455

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- Definition

Amount of cash inflow from sale of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 45
-Paragraph 11
-URI http://asc.fasb.org/extlink&oid=118954083&loc=d3e26853-111562

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 11
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3151-108585

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-SubTopic 10
-Section 45
-Paragraph 12
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3179-108585

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- Definition

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.

+ References

No definition available.

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Securities (Narrative) (Details)	3 Months Ended
Securities (Narrative) (Details)	Mar. 31, 2020 USD ($) Investment	Mar. 31, 2019 USD ($)	Dec. 31, 2019 USD ($)
Debt and Equity Securities, FV-NI [Line Items]
Number of securities in an unrealized loss position \| Investment	790
Total fair value	$ 14,400,000,000
Total unrealized losses	240,000,000.0
Debt securities, unrealized losses	240,000,000.0		$ 108,600,000
Held to maturity securities, transferred from available for sale	0	$ 0
Gross proceeds from sale of securities	280,000,000.0	127,500,000
Provision for credit losses	60,800,000	$ 0
Government Sponsored Agency
Debt and Equity Securities, FV-NI [Line Items]
Debt securities, unrealized losses	106,300,000		78,100,000
Other Asset-Backed
Debt and Equity Securities, FV-NI [Line Items]
Debt securities, unrealized losses	105,100,000		5,300,000
Corporate Debt
Debt and Equity Securities, FV-NI [Line Items]
Total unrealized losses	10,700,000
Debt securities, unrealized losses	$ 10,700,000		4,000,000.0
Percent of corporate debt portfolio	25.00%
Provision for credit losses	$ 200,000
U.S. Government
Debt and Equity Securities, FV-NI [Line Items]
Debt securities, unrealized losses			$ 5,100,000
Percentage of debt securities, held-to-maturity, portfolio	51.00%
AA
Debt and Equity Securities, FV-NI [Line Items]
Percentage of debt securities, held-to-maturity, portfolio	19.00%
A
Debt and Equity Securities, FV-NI [Line Items]
Percentage of debt securities, held-to-maturity, portfolio	19.00%
BBB
Debt and Equity Securities, FV-NI [Line Items]
Percentage of debt securities, held-to-maturity, portfolio	11.00%