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- Definition

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

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- Definition

Number of Securities, Unrealized Losses Position

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No definition available.

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- Definition

The cash inflow associated with the sales of investment securities (available for sale and held to maturity).

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No definition available.

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- Definition

Amount excluding accrued interest, of allowance for credit loss on 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://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 30
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479130/326-30-45-1

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- Definition

Amount of realized gain (loss) on 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://www.xbrl.org/2009/role/commonPracticeRef
-Topic 320
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- Definition

Amount of 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.

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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

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- Definition

Amount excluding accrued interest, before allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity).

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
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- Definition

Amount of accumulated unrealized loss on investment in debt security measured at amortized cost (held-to-maturity).

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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.

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Securities (Narrative) (Details) $ in Millions	3 Months Ended		6 Months Ended		12 Months Ended
Securities (Narrative) (Details) $ in Millions	Jun. 30, 2024 USD ($) security	Jun. 30, 2023 USD ($)	Jun. 30, 2024 USD ($) security	Jun. 30, 2023 USD ($)	Dec. 31, 2023 USD ($) security
Debt and Equity Securities, FV-NI [Line Items]
Number of securities in an unrealized loss position \| security	777		777		898
Total fair value	$ 13,688.9		$ 13,688.9		$ 19,435.3
Debt securities, unrealized losses	298.2		298.2		568.3
Investment security gains (losses)	0.1	$ 0.0	(189.3)	$ 6.9	(176.4)
Provision for (release of) credit losses	7.9	(15.0)	0.1	(0.5)
Held to maturity securities	22,798.6		22,798.6		26,221.7
Debt securities, held-to-maturity, accumulated unrecognized loss	$ 1,860.8		$ 1,860.8		$ 1,755.6
Percentage of debt securities, held-to-maturity, portfolio	1		1		1
Proceeds from sale of investment securities		0.0	$ 2,000.0	2,100.0
Moodys And Standard Poors A Or Higher Rating
Debt and Equity Securities, FV-NI [Line Items]
Percentage of debt securities, held-to-maturity, portfolio	0.96		0.96		0.97
BBB
Debt and Equity Securities, FV-NI [Line Items]
Held to maturity securities	$ 323.8		$ 323.8		$ 334.0
Percentage of debt securities, held-to-maturity, portfolio	0.01		0.01		0.01
NOT RATED
Debt and Equity Securities, FV-NI [Line Items]
Held to maturity securities	$ 543.9		$ 543.9		$ 560.9
Percentage of debt securities, held-to-maturity, portfolio	0.03		0.03		0.02
Government Sponsored Agency
Debt and Equity Securities, FV-NI [Line Items]
Total fair value	$ 8,160.6		$ 8,160.6		$ 9,817.6
Debt securities, unrealized losses	132.4		132.4		200.3
Held to maturity securities	9,041.2		9,041.2		9,355.3
Debt securities, held-to-maturity, accumulated unrecognized loss	1,123.0		1,123.0		1,012.4
Government Sponsored Agency \| BBB
Debt and Equity Securities, FV-NI [Line Items]
Held to maturity securities	0.0		0.0		0.0
Government Sponsored Agency \| NOT RATED
Debt and Equity Securities, FV-NI [Line Items]
Held to maturity securities	0.2		0.2		0.0
Sub-Sovereign, Supranational and Non-U.S. Agency Bonds
Debt and Equity Securities, FV-NI [Line Items]
Total fair value	2,013.7		2,013.7		2,477.0
Debt securities, unrealized losses	60.3		60.3		105.8
Held to maturity securities	4,945.5		4,945.5		5,245.5
Debt securities, held-to-maturity, accumulated unrecognized loss	263.8		263.8		294.9
Sub-Sovereign, Supranational and Non-U.S. Agency Bonds \| BBB
Debt and Equity Securities, FV-NI [Line Items]
Held to maturity securities	1.1		1.1		1.1
Sub-Sovereign, Supranational and Non-U.S. Agency Bonds \| NOT RATED
Debt and Equity Securities, FV-NI [Line Items]
Held to maturity securities	0.0		0.0		0.0
Other Asset-Backed
Debt and Equity Securities, FV-NI [Line Items]
Total fair value	601.3		601.3		2,018.5
Debt securities, unrealized losses	26.3		26.3		100.0
Investment security gains (losses)	0.1
Held to maturity securities	121.2		121.2		214.2
Debt securities, held-to-maturity, accumulated unrecognized loss	0.2		0.2		0.2
Proceeds from sale of investment securities	31.2
Other Asset-Backed \| BBB
Debt and Equity Securities, FV-NI [Line Items]
Held to maturity securities	0.0		0.0		0.0
Other Asset-Backed \| NOT RATED
Debt and Equity Securities, FV-NI [Line Items]
Held to maturity securities	5.9		5.9		0.0
Corporate Debt
Debt and Equity Securities, FV-NI [Line Items]
Total fair value	86.2		86.2		147.4
Debt securities, unrealized losses	1.3		1.3		2.2
Provision for (release of) credit losses	0.1	$ (0.5)	(0.6)	$ 0.0
Net amount of recognized liabilities for repurchase agreements	0.6		0.6		1.2
Held to maturity securities	553.7		553.7		646.1
Debt securities, held-to-maturity, accumulated unrecognized loss	20.9		20.9		28.2
Corporate Debt \| BBB
Debt and Equity Securities, FV-NI [Line Items]
Held to maturity securities	0.0		0.0		0.0
Corporate Debt \| NOT RATED
Debt and Equity Securities, FV-NI [Line Items]
Held to maturity securities	$ 0.0		$ 0.0		$ 0.0