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Intangible Assets, Net (Details) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2021 | Mar. 31, 2020 | Dec. 31, 2020
Intangible assets, net of accumulated amortization [Abstract] |  |  |
Gross Cost | $ 465 |  | $ 457
Accumulated Amortization | (264) |  | (256)
Net Carrying Amount | 201 |  | 201
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract] |  |  |
Remainder of 2021 | 24 |  |
2022 | 33 |  |
2023 | 33 |  |
2024 | 36 |  |
2025 | 33 |  |
Thereafter | 42 |  |
Selling, general and administrative expenses |  |  |
Amortization expense related to intangible assets [Abstract] |  |  |
Amortization expense | 8 | $ 9 |
Customer relationships |  |  |
Intangible assets, net of accumulated amortization [Abstract] |  |  |
Gross Cost | 291 |  | 291
Accumulated Amortization | (197) |  | (193)
Net Carrying Amount | 94 |  | 98
TiO2 technology |  |  |
Intangible assets, net of accumulated amortization [Abstract] |  |  |
Gross Cost | 93 |  | 93
Accumulated Amortization | (26) |  | (24)
Net Carrying Amount | 67 |  | 69
Internal-use software and other |  |  |
Intangible assets, net of accumulated amortization [Abstract] |  |  |
Gross Cost | 81 |  | 73
Accumulated Amortization | (41) |  | (39)
Net Carrying Amount | 40 |  | 34
Capitalized Software |  |  |
Intangible assets, net of accumulated amortization [Abstract] |  |  |
Net Carrying Amount | $ 29 |  | $ 19

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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 + Details
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