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Goodwill and Other Intangibles (Amortization) (Details) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2019 USD ($) item | Dec. 31, 2019 USD ($) item | Dec. 31, 2018 USD ($)
Intangibles |  |  |
Recognition of contract intangible revenues |  | $ 187 | $ 112
2020 | $ 190 | 190 |
2021 | 190 | 190 |
2022 | 171 | 171 |
2023 | 52 | 52 |
2024 | 5 | 5 |
Total carrying amount of contract intangible assets | 608 | 608 | 795
Intangible liabilities |  |  |
Construction contract intangible liabilities |  |  | $ 132
Gain on termination of construction contracts | $ 132 | $ 132 |
Ultra-deepwater floaters |  |  |
Intangible liabilities |  |  |
Number of mobile offshore drilling units under construction | item | 2 | 2 |

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- Definition Number of mobile offshore drilling units under construction we own, had partial ownership interests in or operated at the measurement date. + References No definition available. + Details
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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=118932676&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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- Definition Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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