You might want to educate yourself on how much debt various companies carry. Just for example, as of September 2022:
Yellow Corporation reported $1.48B in Debt for its fiscal quarter ending in June of 2023. Data for Yellow Corporation | YRCW - Debt including historical, tables and charts were last updated by Trading Economics this last April in 2024.
tradingeconomics.com
Knight Transportation 1.88B
Fedex 20.25B
United Parcel Service 20.35B
TFI International Inc 1.7B
Xpo Logistics 2.91B
Yrc Worldwide 1.56B
J B Hunt Transport 1.24B
And by the way, the banks required that YRC institute the givebacks before they would refinance the notes coming due back around 2009. The company didn't do that on their own.