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REVENUE (Tables)
12 Months Ended
Dec. 31, 2020
Revenue from Contract with Customer [Abstract]  
Disaggregation of Revenue
Our revenues are derived primarily from sales to customers in North America and Internationally, principally Europe. Net sales from these geographic markets, by segment, were as follows, in millions:
Year Ended December 31, 2020
Plumbing ProductsDecorative Architectural ProductsTotal
Primary geographic markets:
North America$2,753 $3,052 $5,805 
International, principally Europe1,383 — 1,383 
Total$4,136 $3,052 $7,188 

Year Ended December 31, 2019
Plumbing ProductsDecorative Architectural ProductsTotal
Primary geographic markets:
North America$2,605 $2,723 $5,328 
International, principally Europe1,379 — 1,379 
Total$3,984 $2,723 $6,707 

Year Ended December 31, 2018
Plumbing ProductsDecorative Architectural ProductsTotal
Primary geographic markets:
North America$2,552 $2,656 $5,208 
International, principally Europe1,446 — 1,446 
Total$3,998 $2,656 $6,654 
Financing Receivable, Allowance for Credit Loss
Changes in the allowance for credit losses deducted from accounts receivable were as follows, in millions:
Year Ended
December 31, 2020
Balance at January 1 (after adopting ASU 2016-13)$
Provision for expected credit losses during the period
Write-offs charged against the allowance(2)
Recoveries of amounts previously written off
Balance at end of year$