Note 9. Income Taxes Income Taxes (Tables)

12 Months Ended

Dec. 31, 2022

Income Tax Disclosure [Abstract]

Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]

The components of the provision (benefit) for income taxes from continuing operations are as follows:

	Year Ended December 31,
	2022		2021		2020
	(in millions)
Current:
Federal:
Effect of CARES Act	$	(0.5)	$	2.1	$	(373.3)
Other	2.1		(3.0)		(142.1)
	1.6		(0.9)		(515.4)
State	3.5		(0.6)		(1.5)
Foreign	7.8		4.3		4.3
Total current	12.9		2.8		(512.6)
Deferred:
Federal:
Effect of CARES Act	—		0.4		192.9
Other	14.5		10.4		31.3
	14.5		10.8		224.2
State	0.4		2.4		4.1
Foreign	(0.2)		(0.1)		10.2
Total deferred	14.7		13.1		238.5
Provision (benefit)	$	27.6	$	15.9	$	(274.1)

Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]

The following is a reconciliation between the statutory U.S. federal income tax rate and our effective income tax rate on income before income taxes:

	Year Ended December 31,
	2022		2021		2020
Statutory rate	21.0	%	21.0	%	21.0	%
Foreign branch taxes	2.1		3.0		(0.2)
State taxes	1.7		3.0		1.1
Executive compensation limitations	1.3		1.8		(0.3)
Noncontrolling interest in partially-owned subsidiaries	(2.1)		—		0.1
Equity compensation	(1.1)		(4.0)		—
Changes in valuation allowance and reserves	(0.9)		(4.3)		0.7
Effect of CARES Act	(0.5)		4.5		34.4
Changes in state laws and apportionment	(0.5)		0.3		(1.4)
Foreign rate differential	—		1.4		(0.1)
Nondeductible excise tax	—		1.3		—
Nondeductible compensation	—		1.2		(0.2)
Impairment - noncontrolling interest in partially-owned subsidiaries	—		—		(3.3)
Interest expense limitations from partially-owned subsidiaries	—		—		0.2
Other, net	0.8		(0.4)		0.2
Effective rate	21.8	%	28.8	%	52.2	%

Schedule of Deferred Tax Assets and Liabilities [Table Text Block]

The components of deferred tax liabilities and assets are as follows:

	December 31,
	2022		2021
	(in millions)
Deferred tax liabilities:
Depreciation, depletion, and amortization	$	1,072.6	$	1,032.2
Partially-owned subsidiaries basis difference	134.3		139.2
Right-of-use assets	20.9		18.7
Equity items	4.8		—
Accrued liabilities and other	3.0		1.9
Total deferred tax liabilities	1,235.6		1,192.0
Deferred tax assets:
Workers compensation, pensions, and other benefits	27.4		28.7
Interest expense	31.3		—
Warranties and reserves	2.8		7.3
Equity items	—		5.9
Tax loss carryforwards and credits	40.4		38.4
Inventory	3.6		6.0
Lease liabilities	25.8		24.4
Total deferred tax assets	131.3		110.7
Net deferred tax liabilities before valuation allowances	1,104.3		1,081.3
Valuation allowances	29.5		24.4
Net deferred tax liabilities before reserve for uncertain tax positions	1,133.8		1,105.7
Deferred tax assets included in reserve for uncertain tax positions	(0.7)		(1.1)
Net deferred tax liability	$	1,133.1	$	1,104.6

Unrecognized Tax Benefit Rollforward [Table Text Block]

The change in unrecognized tax benefits was as follows:

	Year Ended December 31,
	2022		2021		2020
	(in millions)
Beginning balance	$	2.3	$	2.3	$	2.3
Additions for tax positions related to the current year	1.1		—		—
Additions for tax positions of prior years	1.7		—		—
Reductions for tax positions of prior years	—		—		—
Settlements	—		—		—
Expiration of statute of limitations	(1.3)		—		—
Ending balance	$	3.8	$	2.3	$	2.3