Debt And Lines Of Credit (Tables)

12 Months Ended

Dec. 31, 2024

Debt Instruments [Abstract]

Debt Extinguishment [Table Text Block]

Amounts related to early debt extinguishment during the years ended December 31, 2024, 2023 and 2022 were as follows: 

In millions	2024		2023		2022
Early debt reductions (a)	$	—	$	—	$	503
Pre-tax early debt extinguishment costs (b)	—		—		93

(a)Reductions related to notes with interest rates ranging from 4.35% to 8.70% with original maturities from 2023 to 2048 for the year ended December 31, 2022.

(b)Amounts are included in Restructuring and other charges in the accompanying consolidated statements of operations.

Summary Of Long-Term Debt [Table Text Block]

A summary of long-term debt follows: 

In millions at December 31	2024		2023
7.350% notes – due 2025	$	39	$	39
7.750% notes – due 2025	22		22
7.200% notes – due 2026	58		58
6.400% notes – due 2026	5		5
7.150% notes – due 2027	7		7
6.875% notes – due 2029	10		10
5.000% notes – due 2035	407		407
6.650% notes – due 2037	3		3
8.700% notes – due 2038	86		86
7.300% notes – due 2039	453		453
6.000% notes – due 2041	585		585
4.800% notes – due 2044	686		686
5.150% notes – due 2046	449		449
4.400% notes – due 2047	647		647
4.350% notes – due 2048	740		740
Floating rate notes – due 2027 – 2030 (a)	308		308
Environmental and industrial development bonds – due 2025 – 2031 (b)	394		419
Floating rate term loan - due 2028	600		600
Total principal	5,499		5,524
Capitalized leases	49		55
Premiums, discounts, and debt issuance costs	(39)		(41)
Terminated interest rate swaps	51		54
Other	1		1
Total (c)	5,561		5,593
Less: current maturities	193		138
Long-term debt	$	5,368	$	5,455

(a)The weighted average interest rate on these notes was 4.6% in 2024 and 5.4% in 2023.

(b)The weighted average interest rate on these bonds was 2.8% in 2024 and 2.4% in 2023.

(c)The fair market value was approximately $5.2 billion at December 31, 2024 and $5.5 billion at December 31, 2023. Debt fair value measurements use Level 2 inputs.