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Income Taxes (Tables)
12 Months Ended
Dec. 31, 2023
Income Tax Disclosure [Abstract]  
Components of Income Before Provision for Income Taxes
The components of income before provision for income taxes consisted of the following (dollars in millions):
Year Ended December 31,
202320222021
Domestic$665 $1,275 $1,684 
Foreign612 383 726 
Total$1,277 $1,658 $2,410 
Tax Provision (Benefit)
Our tax provision (benefit) consisted of the following (dollars in millions):
Year Ended December 31,
202320222021
Current provision:
Federal$98 $338 $275 
State31 99 115 
Foreign242 208 239 
Total current provision371 645 629 
Deferred provision:
Federal(4)(249)35 
State(56)(5)
Foreign(121)(106)(91)
Total deferred provision(121)(411)(61)
Total provision for income taxes$250 $234 $568 
Reconciliation of Pre-Tax Income
The following is a reconciliation stated as a percentage of pre-tax income of the U.S. statutory federal income tax rate to our effective tax rate:
Year Ended December 31,
202320222021
Federal statutory tax rate21 %21 %21 %
Foreign rate differential(1)— — 
State taxes, net of federal benefit
Nontaxable or nondeductible items— 
Reserves for uncertain tax positions— 
Tax credits(5)(2)(1)
Outside basis differences recognized as a result of a legal entity restructuring— (10)— 
Other(1)(1)(1)
Effective tax rate19 %14 %24 %
Temporary Tax Effects
Cumulative tax effects of temporary differences are shown below (dollars in millions):
December 31,
20232022
Assets:
Tax losses and tax credits$506 $369 
Operating lease liabilities343 317 
Bonus and deferred compensation334 372 
Bad debt and other reserves117 103 
Pension obligation— 
All other188 64 
Deferred tax assets, before valuation allowance$1,488 $1,226 
Less: Valuation allowance(357)(255)
Deferred tax assets$1,131 $971 
Liabilities:
Property and equipment(55)(21)
Unconsolidated affiliates and partnerships(115)(93)
Capitalized costs and intangibles(531)(562)
Operating lease assets(286)(273)
All other(38)(38)
Deferred tax liabilities$(1,025)$(987)
Net deferred tax assets/(liabilities)$106 $(16)
Unrecognized Tax Benefits
A reconciliation of the beginning and ending amount of unrecognized tax benefits is as follows (dollars in millions):
Year Ended December 31,
20232022
Beginning balance, unrecognized tax benefits$(391)$(192)
Gross increases - tax positions in prior period(12)(42)
Gross decreases - tax positions in prior period
Gross increases - current-period tax positions(18)(167)
Decreases relating to settlements— 
Reductions as a result of lapse of statute of limitations
Foreign exchange movement— 
Ending balance, unrecognized tax benefits$(413)$(391)