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Significant Transactions (Details) - USD ($) $ in Millions |  | 3 Months Ended | 6 Months Ended
--- | --- | --- | ---
Apr. 01, 2021 | Jun. 30, 2021 | Jun. 30, 2020 | Mar. 31, 2020 | Jun. 30, 2021 | Jun. 30, 2020
Altium Packaging LLC [Member] | Sale of Interest [Member] |  |  |  |  |  |
Significant Transactions [Abstract] |  |  |  |  |  |
Percentage interest of subsidiary sold | 47.00% |  |  |  |  |
Cash consideration from sale of interest in subsidiary |  | $ 420 |  |  | $ 420 |
Pretax gain from sale of interest in subsidiary |  | 555 |  |  | 555 |
After tax gain from sale of interest in subsidiary |  | 438 |  |  | 438 |
Investment at fair value |  | $ 473 |  |  | $ 473 |
Subsidiary ownership percentage |  | 53.00% |  |  | 53.00% |
Property, plant and equipment |  | $ 490 |  |  | $ 490 |
Goodwill |  | 436 |  |  | 436 |
Intangible assets |  | 488 |  |  | 488 |
Other assets |  | 370 |  |  | 370 |
Long term debt |  | 1,100 |  |  | 1,100 |
Other liabilities |  | $ 380 |  |  | $ 380 |
Diamond Offshore [Member] |  |  |  |  |  |
Significant Transactions [Abstract] |  |  |  |  |  |
Deconsolidation loss |  |  | $ 1,200 |  |  | $ 1,200
Deconsolidation loss, after tax |  |  | $ 957 |  |  | $ 957
Pretax asset impairment charge |  |  |  | $ 774 |  |
Asset impairment charge, after tax and noncontrolling interests |  |  |  | $ 408 |  |

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