CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Millions	Sep. 30, 2025	Dec. 31, 2024
Current assets:
Cash and cash investments	$ 559	$ 634
Receivables	1,181	1,035
Inventories	1,069	938
Prepaid expenses and other	150	123
Total current assets	2,959	2,730
Property and equipment, net	1,181	1,116
Goodwill	622	597
Other intangible assets, net	213	220
Operating lease right-of-use assets	239	231
Other assets	98	123
Total assets	5,311	5,016
Current liabilities:
Accounts payable	842	789
Notes payable	2	3
Accrued liabilities	732	767
Total current liabilities	1,576	1,560
Long-term debt	2,945	2,945
Noncurrent operating lease liabilities	226	223
Other liabilities	396	342
Total liabilities	5,143	5,069
Commitments and contingencies (Note L)
Masco Corporation's shareholders' equity:
Common shares, par value $1 per share Authorized shares: 1,400,000,000; Issued and outstanding: 2025 – 207,700,000; 2024 – 212,500,000	208	212
Preferred shares authorized: 1,000,000; Issued and outstanding: 2025 and 2024 – None	0	0
Paid-in capital	0	0
Retained deficit	(576)	(693)
Accumulated other comprehensive income	291	201
Total Masco Corporation's shareholders' deficit	(78)	(279)
Noncontrolling interest	246	227
Total equity	168	(53)
Total liabilities and equity	$ 5,311	$ 5,016

Equity, Attributable to Noncontrolling Interest, Net

No definition available.

Name:	mas_EquityAttributableToNoncontrollingInterestNet
Namespace Prefix:	mas_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).