Revenue

3 Months Ended

Mar. 31, 2021

Revenues [Abstract]

Revenue

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 March 31, 2021
	Plumbing Products		Decorative Architectural Products		Total
Primary geographic markets:
North America	$	808	$	721	$	1,529
International, principally Europe	441		—		441
Total	$	1,249	$	721	$	1,970

	Three Months Ended March 31, 2020
	Plumbing Products		Decorative Architectural Products		Total
Primary geographic markets:
North America	$	632	$	626	$	1,258
International, principally Europe	323		—		323
Total	$	955	$	626	$	1,581

D. REVENUE (Concluded)

Our contract asset balance was $2 million at both March 31, 2021 and December 31, 2020. Our contract liability balance was $27 million and $62 million at March 31, 2021 and December 31, 2020, respectively.

We recognized $1 million and $3 million of revenue for the three-month periods ended March 31, 2021 and 2020, respectively, related to performance obligations settled in previous years.

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

	Three Months Ended March 31, 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 considered held for sale, $1 million for the three month period ended March 31, 2021 was removed from allowance for credit losses.