Review: Long-term debt
 December  31,
(Millions of dollars)Effective Yield to
Maturity 2022 2021
Machinery , Ener gy & Transportation:   
Notes—$ 759 million of 5.200 % due 2041 5.27% $ 752 $ 752 
Debentures—$ 82 million of 8.000 % due 2023 8.06% — 82 
Debentures—$ 1,000  million of 3.400 % due 2024 3.46% 999 999 
Debentures—$ 193 million of 6.625 % due 2028 6.68% 192 192 
Debentures—$ 500 million of 2.600 % due 2029 2.67% 498 498 
Debentures—$ 800 million of 2.600 % due 2030 2.72% 794 793 
Debentures—$ 500 million of 1.900 % due 2031 2.04% 495 495 
Debentures—$ 242 million of 7.300 % due 2031 7.38% 240 240 
Debentures—$ 307 million of 5.300 % due 2035 8.64% 229 226 
Debentures—$ 460 million of 6.050 % due 2036 6.12%