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Income Taxes (Tables)
12 Months Ended
Dec. 31, 2022
Income Tax Disclosure [Abstract]  
Schedule of Reconciliation of Beginning and Ending Liability for Unrecognized Tax Benefits
A reconciliation of the beginning and ending amount of the liability for unrecognized tax benefits is as follows:
($ in millions)202220212020
Balance at January 1$24.9 $10.4 $5.0 
Increase due to current year position11.4 16.3 4.9 
Increase (decrease) due to prior year position0.6 (1.0)0.6 
Reduction for expiration of statute of limitations/audits(0.4)(0.8)(0.1)
Balance at December 31$36.5 $24.9 $10.4 
Schedule of Components of Income Before Income Taxes The components of income before income taxes and equity in net income of affiliated companies are:
($ in millions)202220212020
U.S. operations$394.4 $420.0 $227.0 
International operations285.5 328.9 174.3 
Total income before income taxes and equity in net income of affiliated companies$679.9 $748.9 $401.3 
Schedule of Components of Income Tax Expense
The related provision for income taxes consists of:
($ in millions)202220212020
Current:
Federal$75.7 $64.8 $28.9 
State8.4 10.9 3.4 
International61.4 74.4 46.0 
Current income tax provision145.5 150.1 78.3 
Deferred:
Federal and state(20.3)7.3 0.2 
International(10.5)(50.2)(6.0)
Deferred income tax provision(30.8)(42.9)(5.8)
Income tax expense$114.7 $107.2 $72.5 
Schedule of Deferred Tax Assets and Liabilities
The significant components of our deferred tax assets and liabilities at December 31 are:
($ in millions)20222021
Deferred tax assets
Net operating loss carryforwards$10.3 $14.0 
Tax credit carryforwards1.9 1.5 
Pension and deferred compensation31.4 31.6 
Royalty acceleration46.2 45.1 
Other25.5 12.2 
Capitalized R&D expenses8.1 — 
Leases20.6 — 
Valuation allowance(13.3)(12.2)
Total deferred tax assets130.7 92.2 
Deferred tax liabilities:
Property, plant, and equipment53.7 47.2 
Tax on undistributed earnings of subsidiaries1.5 1.8 
Leases19.7 — 
Other4.5 (0.4)
Total deferred tax liabilities79.4 48.6 
Net deferred tax asset (liability)$51.3 $43.6 
Schedule of Effective Income Tax Rate Reconciliation
A reconciliation of the U.S. federal corporate tax rate to our effective consolidated tax rate on income before income taxes and equity in net income of affiliated companies is as follows:
202220212020
U.S. federal corporate tax rate21.0 %21.0 %21.0 %
Tax on international operations other than U.S. tax rate(1.5)1.9 1.2 
Adjustments to reserves for unrecognized tax benefits2.9 0.1 1.4 
U.S. tax on international earnings, net of foreign tax credits(0.3)0.3 0.4 
Foreign-Derived Intangible Income Deductions (FDII)(2.1)(1.5)(1.1)
State income taxes, net of federal tax effect1.0 (0.1)1.2 
U.S. research and development credits(0.6)(0.4)(0.7)
Excess tax benefits on share-based payments(2.4)(4.2)(5.2)
Royalty acceleration— (2.5)— 
Pension settlement(1.2)— — 
Tax on undistributed earnings of subsidiaries— (0.6)0.1 
Other0.1 0.3 (0.2)
Effective tax rate16.9 %14.3 %18.1 %