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Other-Net, (Income) Expense
12 Months Ended
Dec. 31, 2022
Nonoperating Income (Expense) [Abstract]  
Other-Net, (Income) Expense Other–Net, (Income) Expense
Other–net, (income) expense consisted of the following:
202220212020
Interest expense$331.6 $339.8 $359.6 
Interest income(62.8)(25.4)(33.0)
Net investment (gains) losses on equity securities (Note 7)410.7 (176.9)(1,442.2)
Debt extinguishment loss (Note 11) 405.2 — 
Retirement benefit plans(372.9)(289.7)(251.8)
Other (income) expense14.3 (51.4)195.5 
Other–net, (income) expense$320.9 $201.6 $(1,171.9)