Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) $ in Millions |
Jun. 30, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Available-for-sale securities, amortized cost | $ 32,369.9 | $ 29,229.1 |
| Held to maturity, fair value | 20,141.0 | 20,654.5 |
| Unearned income | $ 5.9 | $ 6.3 |
| Preferred stock, authorized (in shares) | 10,000,000 | 10,000,000 |
| Common stock, par value (in usd per share) | $ 1.6667 | $ 1.6667 |
| Common stock, authorized (in shares) | 560,000,000 | 560,000,000 |
| Common stock, outstanding (in shares) | 191,233,304 | 195,969,746 |
| Treasury stock (in shares) | 53,938,220 | 49,201,778 |
| Series D Preferred Stock | ||
| Preferred stock, authorized (in shares) | 5,000 | 5,000 |
| Preferred stock, outstanding (in shares) | 5,000 | 5,000 |
| Series E Preferred Stock | ||
| Preferred stock, authorized (in shares) | 16,000 | 16,000 |
| Preferred stock, outstanding (in shares) | 16,000 | 16,000 |
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- Definition Face amount or stated value per share of common stock. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The maximum number of common shares permitted to be issued by an entity's charter and bylaws. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amortized cost excluding accrued interest, after allowance for credit loss, of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of fee received for commitment to originate or purchase financing receivable where likelihood of commitment being exercised is remote, to be recognized as service income. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Fair value of investment in debt security measured at amortized cost (held-to-maturity). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Aggregate share number for all nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) held by stockholders. Does not include preferred shares that have been repurchased. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Number of previously issued common shares repurchased by the issuing entity and held in treasury. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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