XML 86 R37.htm IDEA: XBRL DOCUMENT v3.22.0.1
Long-term Debt (Tables)
 12 Months Ended
Dec. 31, 2021
Debt Disclosure [Abstract]  
Schedule of Long-term Debt Instruments [Table Text Block]
December 31, 2021December 31, 2020
Interest RatePrincipalUnamortized Debt CostsTotalPrincipalUnamortized Debt CostsTotal
Debentures:
Senior unsecured notes, maturing 2029, interest rates fixed3.625 %$350 $(4)$346 $— $— $— 
Senior unsecured notes, maturing 2024, interest rates fixed4.875 %— — — 350 (2)348 
Amended Credit Facility, maturing 2023 to 2024, interest rates variable varies— — — — — — 
Other financing:
Financing leases— — — 1 — 1 
Total350 (4)346 351 (2)348 
Less: current portion— — — — — — 
Long-term portion$350 $(4)$346 $351 $(2)$348 
Schedule of Maturities of Long-term Debt [Table Text Block] The weighted average interest rate for all long-term debt at December 31, 2021 and 2020, was approximately 3.6% and 4.9%, respectively. Required repayment of principal for long-term debt is as follows:
Years ending December 31,
2022$— 
2023— 
2024— 
2025— 
2026— 
2027 and after350 
Total$350