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Savings Plans (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Domestic Tax Authority |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans |  |  |
Cost Recognized | $ 58.7 | $ 61.2 | $ 52.6
Discretionary Company Contribution |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans |  |  |
Cost Recognized | 2.9 | 8.1 | 6.7
Defined Contribution Plans Participant Forfeitures |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans |  |  |
Cost Recognized | 5.1 | 5.6 | 5.8
Foreign Tax Authority |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans |  |  |
Cost Recognized | $ 46.3 | $ 54.5 | $ 51.3

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- Definition Amount of cost for defined contribution plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 70 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=49170846&loc=d3e28014-114942 + Details
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