Business Combinations - Schedule of Fair Value of the Identified Intangible Assets and their Useful Lives (Detail) - USD ($) $ in Millions |
12 Months Ended | |
|---|---|---|
Dec. 31, 2020 |
Dec. 31, 2019 |
|
| Business Acquisition [Line Items] | ||
| Intangible assets, Fair Value | $ 471 | $ 510 |
| Maxwell Technologies, Inc. [Member] | ||
| Business Acquisition [Line Items] | ||
| Intangible assets, Fair Value | 105 | |
| Developed technology [Member] | Maxwell Technologies, Inc. [Member] | ||
| Business Acquisition [Line Items] | ||
| Finite-lived intangible assets, Fair Value | $ 102 | |
| Useful Life (in years) | 9 years | |
| Customer relations [Member] | Maxwell Technologies, Inc. [Member] | ||
| Business Acquisition [Line Items] | ||
| Finite-lived intangible assets, Fair Value | $ 2 | |
| Useful Life (in years) | 9 years | |
| Trade names [Member] | Maxwell Technologies, Inc. [Member] | ||
| Business Acquisition [Line Items] | ||
| Finite-lived intangible assets, Fair Value | $ 1 | |
| Useful Life (in years) | 10 years |