XML 29 R18.htm IDEA: XBRL DOCUMENT
v3.21.1

Fair Values of Financial Instruments | 3 Months Ended
--- | ---
Mar. 31, 2021
Fair Value Disclosures [Abstract] |
Fair Values of Financial Instruments | Fair Values of Financial Instruments The fair values of “Cash and cash equivalents,” “Accounts receivable – net,” and “Accounts payable,” approximate carrying values because of the short maturity of these financial instruments. The carrying value of corporate-owned life insurance is recorded at cash surrender value and, accordingly, approximates fair value. There are no other assets or liabilities measured at fair value on a recurring basis at March 31, 2021 or December 31, 2020. The carrying amounts and estimated fair values, based on Level 1 inputs, of long-term debt consist of the following:
| March 31, 2021 |  | December 31, 2020
| Carrying Amount |  | Fair Value |  | Carrying Amount |  | Fair Value
| ($ in millions)
Long-term debt, including current maturities | $ | (12,617) |  |  | $ | (15,249) |  |  | $ | (12,681) |  |  | $ | (16,664) |

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

X
- Definition The entire disclosure of the fair value measurement of assets and liabilities, which includes financial instruments measured at fair value that are classified in shareholders' equity, which may be measured on a recurring or nonrecurring basis. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -URI http://asc.fasb.org/topic&trid=2155941 + Details
Name: | us-gaap_FairValueMeasurementInputsDisclosureTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration