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Income Taxes | 12 Months Ended
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Dec. 31, 2023
Income Tax Disclosure [Abstract] |
Income Taxes | 7. Income Taxes The following is an analysis of the components of the consolidated income tax provision (dollars in millions):
|  | Year Ended December 31, |
|  | 2023 |  |  | 2022 |  |  | 2021 |
Current income tax provision - |  |  |  |  |  |  |  |  |
U.S. federal |  | $ | 199.4 |  |  | $ | 187.3 |  |  | $ | 158.0 |
State and local |  |  | 44.3 |  |  |  | 61.7 |  |  |  | 50.1 |
Foreign |  |  | — |  |  |  | — |  |  |  | 0.1 |
Total current provision for taxes |  |  | 243.7 |  |  |  | 249.0 |  |  |  | 208.2 |
Deferred income tax provision (benefit) - |  |  |  |  |  |  |  |  |
U.S. federal |  |  | 3.6 |  |  |  | 86.9 |  |  |  | 62.1 |
State and local |  |  | 1.6 |  |  |  | (0.7 | ) |  |  | (2.6 | )
Foreign |  |  | — |  |  |  | (0.2 | ) |  |  | (0.1 | )
Total deferred provision for taxes |  |  | 5.2 |  |  |  | 86.0 |  |  |  | 59.4 |
Total provision for taxes |  | $ | 248.9 |  |  | $ | 335.0 |  |  | $ | 267.6 |
The effective tax rate varies from the U.S. federal statutory tax rate principally due to the following (dollars in millions):
|  | 2023 |  |  | 2022 |  |  | 2021 |
Provision computed at U.S. federal statutory rate of 21% |  | $ | 213.0 |  |  | $ | 286.6 |  |  | $ | 232.8 |
State and local taxes, net of federal benefit |  |  | 38.6 |  |  |  | 51.6 |  |  |  | 42.6 |
Other |  |  | (2.7 | ) |  |  | (3.2 | ) |  |  | (7.8 | )
Total |  | $ | 248.9 |  |  | $ | 335.0 |  |  | $ | 267.6 |
The following details the scheduled expiration dates of our tax effected net operating loss (NOL) and other tax carryforwards at December 31, 2023 (dollars in millions):
|  | 2024 Through 2033 |  |  | 2034 Through 2043 |  |  | Indefinite |  |  | Total |
U.S. federal NOLs |  | $ | 15.5 |  |  | $ | — |  |  | $ | — |  |  | $ | 15.5 |
State taxing jurisdiction NOLs |  |  | 0.5 |  |  |  | 0.2 |  |  |  | — |  |  |  | 0.7 |
U.S. federal and non-U.S. capital loss carryforwards |  |  | 0.3 |  |  |  | — |  |  |  | — |  |  |  | 0.3 |
U.S. federal tax credit carryforwards |  |  | 0.1 |  |  |  | — |  |  |  | — |  |  |  | 0.1 |
Total |  | $ | 16.4 |  |  | $ | 0.2 |  |  | $ | — |  |  | $ | 16.6 |
Deferred income taxes reflect the net tax effects of temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the amounts for income tax purposes. Deferred income tax assets and liabilities at December 31 are summarized as follows (dollars in millions):
|  | December 31, |
|  | 2023 |  |  | 2022 |
Deferred tax assets: |  |  |  |  |  |
Lease obligations |  | $ | 72.8 |  |  | $ | 77.0 |
Employee benefits and compensation |  |  | 44.8 |  |  |  | 44.0 |
Accrued liabilities |  |  | 30.4 |  |  |  | 28.9 |
Net operating loss carryforwards |  |  | 16.2 |  |  |  | 19.8 |
Inventories |  |  | 13.4 |  |  |  | 7.9 |
Pension and postretirement benefits |  |  | 12.7 |  |  |  | 30.4 |
Restricted stock and performance units |  |  | 9.8 |  |  |  | 8.7 |
Capital loss and general business credit carryforwards |  |  | 0.4 |  |  |  | 0.5 |
Derivatives |  |  | 0.1 |  |  |  | 0.1 |
Gross deferred tax assets |  |  | 200.6 |  |  |  | 217.3 |
Valuation allowance (a) |  |  | (0.3 | ) |  |  | (0.4 | )
Net deferred tax assets |  | $ | 200.3 |  |  | $ | 216.9 |
Deferred tax liabilities: |  |  |  |  |  |
Property, plant and equipment |  | $ | (609.2 | ) |  | $ | (609.0 | )
Goodwill and intangible assets |  |  | (79.0 | ) |  |  | (75.9 | )
Right-of-use assets |  |  | (70.1 | ) |  |  | (75.0 | )
Total deferred tax liabilities |  | $ | (758.3 | ) |  | $ | (759.9 | )
Net deferred tax liabilities |  | $ | (558.0 | ) |  | $ | (543.0 | )
(a) Deferred tax assets are reduced by a valuation allowance when it is more likely than not that some portion of the deferred tax assets will not be realized. Both the 2023 and 2022 valuation allowances relate to capital losses. We do not expect to generate capital gains before the capital losses expire. If or when recognized, the tax benefits relating to the reversal of any or all of the valuation allowance would be recognized as a benefit to income tax expense. Cash payments for federal, state, and foreign income taxes were $212.3 million, $277.4 million, and $210.5 million for the years ended December 31, 2023, 2022, and 2021, respectively. The following table summarizes the changes related to PCA’s gross unrecognized tax benefits excluding interest and penalties (dollars in millions):
|  | 2023 |  |  | 2022 |  |  | 2021 |
Balance as of January 1 |  | $ | (1.7 | ) |  | $ | (1.9 | ) |  | $ | (5.2 | )
Increases related to prior years’ tax positions |  |  | (0.4 | ) |  |  | (0.2 | ) |  |  | — |
Increases related to current year tax positions |  |  | (0.7 | ) |  |  | (0.4 | ) |  |  | (0.3 | )
Decreases related to prior years' tax positions |  |  | — |  |  |  | — |  |  |  | 0.2 |
Settlements with taxing authorities |  |  | — |  |  |  | — |  |  |  | 3.0 |
Expiration of the statute of limitations |  |  | 0.4 |  |  |  | 0.8 |  |  |  | 0.4 |
Balance at December 31 |  | $ | (2.4 | ) |  | $ | (1.7 | ) |  | $ | (1.9 | )
At December 31, 2023, PCA had recorded a $2.4 million gross reserve for unrecognized tax benefits, excluding interest and penalties. Of the total, $2.4 million (net of the federal benefit for state taxes) would impact the effective tax rate if recognized. PCA recognizes interest accrued related to unrecognized tax benefits and penalties as income tax expense. For both years ended December 31, 2023 and 2022, we had $0.1 million of interest and penalties recorded for unrecognized tax benefits. PCA does not expect the unrecognized tax benefits to change significantly over the next 12 months. PCA is subject to income taxation in the United States, various state and local jurisdictions, and Hong Kong. A federal examination of the 2016 tax year concluded in March 2021. The tax years 2020-2023 remain open to federal examination. The tax years 2019-2023 remain open to state examinations. Some foreign tax jurisdictions are open to examination for the 2009 tax year forward. Through the Boise acquisition, PCA recorded net operating losses and credit carryforwards from 2008 through 2011 and 2013 that are subject to examinations and adjustments for at least three years following the year in which utilized.

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- Definition The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480990/946-20-50-13 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(h)(2)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480678/235-10-S99-1 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org//740/tableOfContent Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 14 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482685/740-10-50-14 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 21 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482685/740-10-50-21 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 270 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482526/740-270-50-1 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 17 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482685/740-10-50-17 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 6.I.5.Q1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479360/740-10-S99-1 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 11.C) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479360/740-10-S99-2 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482603/740-30-50-2 + Details
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