XML 42 R31.htm IDEA: XBRL DOCUMENT
v3.24.2.u1

DEBT (Tables) | 6 Months Ended
--- | ---
Jun. 30, 2024
Debt Disclosure [Abstract] |
Debt | Debt is detailed as follows:
in millions | Effective Interest Rates | June 30 2024 | December 31 2023 | June 30 2023
Bank line of credit expires 2027 1 |  | $ | 0.0 |  | $ | 0.0 |  | $ | 0.0 |
Commercial paper expires 2027 1 |  | 95.0 |  | 0.0 |  | 0.0 |
Total short-term debt |  | $ | 95.0 |  | $ | 0.0 |  | $ | 0.0 |
Bank line of credit expires 2027 1 |  | $ | 0.0 |  | $ | 0.0 |  | $ | 0.0 |
Commercial paper expires 2027 1 |  | 550.0 |  | 550.0 |  | 550.0 |
4.50% notes due 2025 3 | 4.65% | 400.0 |  | 400.0 |  | 400.0 |
5.80% notes due 2026 |  | 0.0 |  | 550.0 |  | 550.0 |
3.90% notes due 2027 | 4.00% | 400.0 |  | 400.0 |  | 400.0 |
3.50% notes due 2030 | 3.94% | 750.0 |  | 750.0 |  | 750.0 |
7.15% notes due 2037 | 8.05% | 129.2 |  | 129.2 |  | 129.2 |
4.50% notes due 2047 | 4.59% | 700.0 |  | 700.0 |  | 700.0 |
4.70% notes due 2048 | 5.42% | 460.9 |  | 460.9 |  | 460.9 |
Other notes | 0.42% | 1.0 |  | 1.4 |  | 1.5 |
Total long-term debt - face value |  | $ | 3,391.1 |  | $ | 3,941.5 |  | $ | 3,941.6 |
Unamortized discounts and debt issuance costs |  | (58.9) |  | (63.4) |  | (65.9) |
Fair value adjustments 2 |  | 0.0 |  | (0.3) |  | (2.0) |
Total long-term debt - book value |  | $ | 3,332.2 |  | $ | 3,877.8 |  | $ | 3,873.7 |
Less current maturities |  | (0.5) |  | (0.5) |  | (0.5) |
Total long-term debt - reported value |  | $ | 3,331.7 |  | $ | 3,877.3 |  | $ | 3,873.2 |
Estimated fair value of long-term debt |  | $ | 3,158.6 |  | $ | 3,798.0 |  | $ | 3,715.0 |
1 Borrowings on the bank line of credit and commercial paper are classified as short-term if we intend to repay within twelve months and as long-term if we have the intent and ability to extend payment beyond twelve months. 2 See Note 6 for additional information on our fair value hedging strategy. 3 We have the intent and ability to refinance these notes due April 2025 on a long-term basis.
Standby Letters of Credit | Our standby letters of credit as of June 30, 2024 are summarized by purpose in the table below:
in millions |
Risk management insurance | $ | 80.3 |
Reclamation/restoration requirements | 14.9 |
Total standby letters of credit | $ | 95.2 |

X
- References No definition available. + Details
Name: | us-gaap_DebtDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of information pertaining to short-term and long-debt instruments or arrangements, including but not limited to identification of terms, features, collateral requirements and other information necessary to a fair presentation. + References No definition available. + Details
Name: | us-gaap_ScheduleOfDebtTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of short-term or long-term contractual arrangements with lenders, including letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)(b)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(19)(b)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 + Details
Name: | us-gaap_ScheduleOfLineOfCreditFacilitiesTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration