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REVENUE RECOGNITION
 3 Months Ended
Mar. 31, 2023
Revenue from Contract with Customer [Abstract]  
REVENUE RECOGNITION REVENUE RECOGNITION
Disaggregation of Revenue
The following table presents our disaggregated revenues by revenue source. We sell products within all product categories in each operating segment. For additional information on the disaggregated revenues by geographic regions, see Note 12 to the Consolidated Condensed Financial Statements.
Three Months Ended March 31,
Millions of dollars20232022
Major product categories:
Laundry$1,295 $1,333 
Refrigeration1,372 1,528 
Cooking1,092 1,281 
Dishwashing432 450 
Total major product category net sales $4,191 $4,592 
Spare parts and warranties236 234 
Other222 94 
Total net sales$4,649 $4,920 
The impact to revenue related to prior period performance obligations is less than 1% of global consolidated revenues for the three months ended March 31, 2023.

Allowance for Expected Credit Losses and Bad Debt Expense
We estimate our expected credit losses primarily by using an aging methodology and establish customer-specific reserves for higher risk trade customers. Our expected credit losses are evaluated and controlled within each geographic region considering the unique credit risk specific to the country, marketplace and economic environment. We take into account past events, current conditions and reasonable and supportable forecasts in developing the reserve.
The following table summarizes our allowance for expected credit losses and bad debt by operating segment for the three months ended March 31, 2023:
Millions of dollarsDecember 31, 2022Charged to EarningsWrite-offsForeign Currency
Other (1)
March 31, 2023
Accounts receivable allowance
North America$6 $(1)$(1)$— $— $4 
EMEA2 — — 1 (1)2 
Latin America38 1 (1)2 — 40 
Asia3 — — — — 3 
Consolidated$49 $— $(2)$3 $(1)$49 
Financing receivable allowance
Latin America$27 $— $— $1 $— $28 
Consolidated$76 $— $(2)$4 $(1)$77 
(1) Starting from the fourth quarter of 2022, accounts receivable allowance of our European major domestic appliance business is transferred to assets held for sale. For additional information, see Note 13 to the Consolidated Condensed Financial Statements.
We recorded an immaterial amount of bad debt expense for the periods ended March 31, 2023 and December 31, 2022, respectively.