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Goodwill and Other Intangible Assets - Goodwill Rollforward (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2021 | Dec. 31, 2020 | Jun. 30, 2021
Goodwill [Line Items] |  |  |
Gross goodwill | $ 968 | $ 978 | $ 968
Accumulated Impairment Losses | (376) | (415) | (376)
Net goodwill | 592 | 563 | 592
Goodwill [Roll Forward] |  |  |
Gross goodwill | 968 | 978 | 968
Accumulated Impairment Losses | (376) | (415) | (376)
Goodwill, beginning balance |  |  | 563
Acquisitions |  |  | 35
Other |  |  | (6)
Goodwill, ending balance | 592 | 563 | 592
Goodwill, Written off Related to Sale of Business Unit | 39 |  |
Plumbing Products (A) |  |  |
Goodwill [Line Items] |  |  |
Gross goodwill | 602 | 613 | 602
Accumulated Impairment Losses | (301) | (340) | (301)
Net goodwill | 301 | 273 | 301
Goodwill [Roll Forward] |  |  |
Gross goodwill | 602 | 613 | 602
Accumulated Impairment Losses | (301) | (340) | (301)
Goodwill, beginning balance |  |  | 273
Acquisitions |  |  | 34
Other |  |  | (6)
Goodwill, ending balance | 301 | 273 | 301
Decorative Architectural Products |  |  |
Goodwill [Line Items] |  |  |
Gross goodwill | 366 | 365 | 366
Accumulated Impairment Losses | (75) | (75) | (75)
Net goodwill | 291 | 290 | 291
Goodwill [Roll Forward] |  |  |
Gross goodwill | 366 | 365 | 366
Accumulated Impairment Losses | (75) | (75) | (75)
Goodwill, beginning balance |  |  | 290
Acquisitions |  |  | 1
Other |  |  | 0
Goodwill, ending balance | $ 291 | $ 290 | $ 291

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