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Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Millions | Total | Common Stock | Treasury Stock | Additional paid-in capital | Retained earnings | Accumulated other comprehensive income (loss), net
--- | --- | --- | --- | --- | --- | ---
Beginning balance at Dec. 31, 2021 | $ 3,604.8 | $ 1.1 | $ (106.8) | $ 1,509.4 | $ 2,145.5 | $ 55.6
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |
Cash dividends on common stock | (209.4) |  |  |  | (209.4) |
Stock-based compensation | 30.7 | 0.0 |  | 30.7 |  |
Repurchases of common stock from employee stock plans | (8.9) |  | (8.9) |  |  |
Purchase of common stock | (100.9) |  | (100.9) |  |  |
Retirement of treasury stock | 0.0 | 0.0 | 85.6 | (85.6) |  |
Shares issued under employee stock purchase plan | 0.6 |  |  | 0.6 |  |
Net income | 235.0 |  |  |  | 235.0 |
Other comprehensive income (loss) | (86.6) |  |  |  |  | (86.6)
Ending balance at Dec. 31, 2022 | 3,465.3 | 1.1 | (131.0) | 1,455.1 | 2,171.1 | (31.0)
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |
Cash dividends on common stock | (223.5) |  |  |  | (223.5) |
Stock-based compensation | 41.3 |  |  | 41.3 |  |
Repurchases of common stock from employee stock plans | (13.9) |  | (13.9) |  |  |
Purchase of common stock | (83.9) |  | (83.9) |  |  |
Retirement of treasury stock | 0.0 |  | 218.3 | (34.5) | (183.8) |
Shares issued under employee stock purchase plan | 16.7 |  |  | 16.7 |  |
Net income | 761.4 |  |  |  | 761.4 |
Other comprehensive income (loss) | 21.6 |  |  |  |  | 21.6
Ending balance at Dec. 31, 2023 | 3,985.0 | 1.1 | (10.5) | 1,478.6 | 2,525.2 | (9.4)
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |
Cash dividends on common stock | (249.4) |  |  |  | (249.4) |
Stock-based compensation | 41.8 |  |  | 41.8 |  |
Repurchases of common stock from employee stock plans | (29.5) |  | (29.5) |  |  |
Purchase of common stock | (205.6) |  | (205.6) |  |  |
Retirement of treasury stock | 0.0 | (0.1) | 244.2 | (19.3) | (224.8) |
Shares issued under employee stock purchase plan | 11.4 |  |  | 11.4 |  |
Net income | 764.9 |  |  |  | 764.9 |
Other comprehensive income (loss) | (39.0) |  |  |  |  | (39.0)
Ending balance at Dec. 31, 2024 | $ 4,279.6 | $ 1.0 | $ (1.4) | $ 1,512.5 | $ 2,815.9 | $ (48.4)

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- Definition Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -SubTopic 10 -Topic 505 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481112/505-10-50-2 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480008/505-10-S99-1 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481549/505-30-45-1 + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration