Investments - Short-term Investments (Details) - USD ($) |
3 Months Ended | 9 Months Ended | |||
|---|---|---|---|---|---|
Sep. 30, 2023 |
Oct. 01, 2022 |
Sep. 30, 2023 |
Oct. 01, 2022 |
Dec. 31, 2022 |
|
| Schedule Of Trading Securities And Other Trading Assets [Line Items] | |||||
| Debt Securities, Realized Gain (Loss) | $ 329,000,000 | $ 861,000,000 | $ (336,000,000) | $ 1,800,000,000 | |
| Debt Securities, Available-for-sale, Amortized Cost | 6,100,000,000 | 6,100,000,000 | $ 10,200,000,000 | ||
| Available-for-sale Securities | |||||
| Schedule Of Trading Securities And Other Trading Assets [Line Items] | |||||
| Derivative, Amount of Hedged Item | 16,100,000,000 | 16,100,000,000 | $ 16,200,000,000 | ||
| Unrealized Gain (Loss) on Derivatives | $ 320,000,000 | $ 916,000,000 | $ 354,000,000 | $ 1,800,000,000 | |
| X | ||||||||||
- Definition Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of realized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), investment in debt security measured at amortized cost (held-to-maturity) and investment in debt security measured at fair value with change in fair value recognized in net income (trading). Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Amount of hedged item in hedging relationship. Excludes hedged asset or liability. No definition available.
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Definition The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of derivative instruments, including options, swaps, futures, and forward contracts, held at each balance sheet date, that was included in earnings for the period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Details
|