Revenue (Tables)

9 Months Ended

Sep. 30, 2021

Revenues [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:

	Three Months Ended September 30, 2021
	Plumbing Products		Decorative Architectural Products		Total
Primary geographic markets:
North America	$	878	$	875	$	1,753
International, principally Europe	451		—		451
Total	$	1,329	$	875	$	2,204

	Nine Months Ended September 30, 2021
	Plumbing Products		Decorative Architectural Products		Total
Primary geographic markets:
North America	$	2,553	$	2,446	$	4,999
International, principally Europe	1,354		—		1,354
Total	$	3,907	$	2,446	$	6,353

	Three Months Ended September 30, 2020
	Plumbing Products		Decorative Architectural Products		Total
Primary geographic markets:
North America	$	757	$	842	$	1,599
International, principally Europe	384		—		384
Total	$	1,141	$	842	$	1,983

	Nine Months Ended September 30, 2020
	Plumbing Products		Decorative Architectural Products		Total
Primary geographic markets:
North America	$	1,973	$	2,364	$	4,337
International, principally Europe	991		—		991
Total	$	2,964	$	2,364	$	5,328

Financing Receivable, Allowance for Credit Loss

Changes in the allowance for credit losses deducted from accounts receivable were as follows, in millions: 

	Nine Months Ended September 30, 2021		Twelve Months Ended December 31, 2020
Balance at January 1	$	7	$	5
Provision for expected credit losses during the period	1		3
Write-offs charged against the allowance	(1)		(2)
Recoveries of amounts previously written off	1		1
Other (A)	(1)		—
Balance at end of period	$	7	$	7

(A)    As a result of Hüppe being divested in May 2021, $1 million for the nine months ended September 30, 2021 was removed from allowance for credit losses.