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ESOP (Details) $ in Millions | 12 Months Ended
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Dec. 31, 2021 USD ($) employee shares | Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($)
Share-based Payment Arrangement [Abstract] |  |  |
Number of employees contributing to company's ESOP | employee | 42,721 |  |
Participants percentage contribution on a pretax basis only of their annual compensation (up to the lesser of) | 50.00% |  |
Percentage of matching contribution to ESOP plan by employer | 100.00% |  |
Percentage of eligible contribution plan up to which employer contributes (up to) | 6.00% |  |
Company contributions to ESOP on behalf of participating employees representing amounts authorized by employees to be withheld from their earnings on pre-tax basis | $ 224.3 | $ 196.5 | $ 180.5
Company's matching contributions to the ESOP | $ 133.7 | $ 120.0 | $ 111.9
Employee stock ownership plan common stock shares held in ESOP (in shares) | shares | 20,639,085 |  |
Percentage of total voting shares outstanding held by the ESOP | 7.90% |  |

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- Definition Employee stock ownership plan ESOP numbers of employees contributed to company's ESOP. + References No definition available. + Details
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- Definition Employee stock ownership plan ESOP participants contribution on pretax basis maximum. + References No definition available. + Details
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- Definition Employers contributions to ESOP representing amounts authorized by employees to be withheld from their earnings on pre-tax basis. + References No definition available. + Details
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- Definition Maximum percentage of eligible contribution plan up to which employer contributes. + References No definition available. + Details
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- Definition Percentage of matching contribution to ESOP plan by employer. + References No definition available. + Details
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- Definition Shares held in employee stock ownership plan ESOP representing percentage of common stock voting shares outstanding. + References No definition available. + Details
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- Definition This item represents the amount of cash contributions during the period made by the entity to the Employee Stock Ownership Plan (ESOP). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 40 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109244661&loc=d3e17540-113929 + Details
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- Definition Sum of the allocated, committed-to-be-released and suspense shares of the entity held by the plan. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 40 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=109244661&loc=d3e17540-113929 + Details
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