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Employee Benefit Plan | 12 Months Ended
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Dec. 31, 2020
Compensation And Retirement Disclosure [Abstract] |
Employee Benefit Plan | 17. Employee Benefit Plans Nucor makes contributions to a Profit Sharing and Retirement Savings Plan for qualified employees based on the profitability of the Company. Nucor’s expense for these benefits totaled $86.6 million in 2020 ($181.4 million in 2019 and $307.9 million in 2018). The related liability for these benefits is included in salaries, wages and related accruals in the consolidated balance sheets. Nucor also has a medical plan covering certain eligible early retirees. The unfunded obligation, included in deferred credits and other liabilities in the consolidated balance sheets, totaled $28.2 million at December 31, 2020 ($27.0 million at December 31, 2019). The expense associated with this early retiree medical plan totaled $2.5 million in 2020 ($2.0 million in 2019 and $2.1 million in 2018). The discount rate used by Nucor in determining its benefit obligation was 2.40% in 2020 (3.23% in 2019 and 4.24% in 2018). The health care cost increase trend rate used was 5.7% in 2020 (6.0% in 2019 and 6.3% in 2018). The health care cost increase trend rate is projected to decline gradually to 4.5% by 2037.

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- Definition The entire disclosure for pension and other postretirement benefits. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -URI http://asc.fasb.org/topic&trid=2235017 + Details
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