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Leases | 12 Months Ended
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Dec. 31, 2023
Leases [Abstract] |
Leases | Leases Operating lease cost includes short-term leases and variable lease payments and approximates cash paid. Operating lease cost was $63, $61, and $63 in 2023, 2022, and 2021, respectively. Operating lease cost in 2023 and the second half of 2022 includes the lease for the portion of the property in Pittsburgh, PA used as the corporate headquarters. Operating lease right-of-use assets and lease liabilities in the Consolidated Balance Sheet were as follows:
December 31, | 2023 |  | 2022 |  |
Right-of-use assets classified in Other noncurrent assets | $ | 128 |  |  | $ | 111 |  |  |
Current portion of lease liabilities classified in Other current liabilities | $ | 32 |  |  | $ | 32 |  |  |
Long-term portion of lease liabilities classified in Other noncurrent liabilities and deferred credits | 97 |  |  | 83 |  |  |
Total lease liabilities | $ | 129 |  |  | $ | 115 |  |  |
Future minimum contractual operating lease obligations were as follows at December 31, 2023:
2024 | $ | 39 |  |  |
2025 | 30 |  |  |
2026 | 23 |  |  |
2027 | 18 |  |  |
2028 | 12 |  |  |
Thereafter | 40 |  |  |
Total lease payments | $ | 162 |  |  |
Less: Imputed interest | (33) |  |  |
Present value of lease liabilities | $ | 129 |  |  |
December 31, | 2023 |  | 2022 |  | 2021
Right-of-use assets obtained in exchange for operating lease obligations (N) | $ | 68 |  |  | $ | 34 |  |  | $ | 16 |
Weighted-average remaining lease term in years | 6.4 |  | 5.6 |  | 5.8
Weighted-average discount rate | 5.9 | % |  | 5.4 | % |  | 5.4 | %

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- Definition The entire disclosure for operating leases of lessee. Includes, but is not limited to, description of operating lease and maturity analysis of operating lease liability. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org//842-20/tableOfContent + Details
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