Debt and Derivatives (Tables)

12 Months Ended

Dec. 31, 2024

Debt and Derivatives

Components of debt

The following table summarizes the major components of debt at principal amounts as of each balance sheet date (in millions) and provides the maturities and interest rate ranges of each major category as of December 31:

	2024		2023
Commercial paper program (weighted average interest rate of 4.7% as of December 31, 2024 and 5.6% as of December 31, 2023)	$	1,250	$	860
Senior notes, maturing through 2054, interest rates ranging from 0.75% to 7.75% (weighted average interest rate of 4.2% as of December 31, 2024 and 3.7% as of December 31, 2023)		18,419		11,376
Canadian senior notes, C$500 million maturing September 2026, interest rate of 2.6%		348		378
Tax-exempt bonds, maturing through 2053, fixed and variable interest rates ranging from 0.70% to 4.80% (weighted average interest rate of 3.7% as of December 31, 2024 and 3.3% as of December 31, 2023)		2,873		2,883
Financing leases and other, maturing through 2082 (weighted average interest rate of 4.9% as of December 31, 2024 and 5.0% as of December 31, 2023) (a)		1,189		855
Debt issuance costs, discounts and other		(179)		(123)
		23,900		16,229
Current portion of long-term debt		1,359		334
Long-term debt, less current portion	$	22,541	$	15,895

(a) Excluding our landfill financing leases, the maturities of our financing leases and other debt obligations extend through 2059.