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Divestitures - Narrative (Details) $ in Millions |  |  | 3 Months Ended | 6 Months Ended
--- | --- | --- | --- | ---
Feb. 18, 2020 USD ($) | Nov. 06, 2019 USD ($) | Jun. 30, 2021 USD ($) | Jun. 30, 2020 USD ($) installment | Jun. 30, 2021 USD ($) | Jun. 30, 2020 USD ($) installment
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |
Businesses, net of cash disposed |  |  |  |  | $ 5 | $ 865
Discontinued Operations, Disposed of by Sale |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |
Gain on disposal of discontinued operations |  |  | $ 0 | $ 17 | 0 | 602
Income before income tax, discontinued operations |  |  | $ 0 | $ 18 | $ 0 | 594
Masco Cabinetry | Discontinued Operations, Disposed of by Sale |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |
Businesses, net of cash disposed | $ 989 |  |  |  |  |
Proceeds from divestiture | 853 |  |  |  |  |
Gain (loss) on disposition of business |  |  |  |  |  | $ 585
Milgard |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |
Number of installments | installment |  |  |  | 5 |  | 5
Milgard | Discontinued Operations, Disposed of by Sale |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |
Businesses, net of cash disposed |  | $ 720 |  | $ 12 |  |
Gain on disposal of discontinued operations |  |  |  | 17 |  | $ 17
Short term receivable from divestiture of businesses, payable in five monthly installments |  |  |  | $ 5 |  | $ 5
ACProducts Preferred Stock | Masco Cabinetry | Discontinued Operations, Disposed of by Sale |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |
Proceeds from divestiture of businesses | $ 136 |  |  |  |  |

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