Commitments and Contingencies (Narrative) (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2023 |
Dec. 31, 2022 |
Dec. 31, 2021 |
|
| Commitments And Contingencies [Line Items] | |||
| Operating lease expense inclusive of short-term and variable lease expenses | $ 1,200 | $ 1,200 | $ 1,200 |
| Weighted average remaining lease term for operating leases | 17 years | 18 years | |
| Weighted average discount rate used to calculate operating lease liabilities | 4.10% | 4.00% | |
| Cash payments for operating leases | $ 963 | $ 965 | 987 |
| Carrying value of contractual obligation | 1,100 | ||
| Contractual value of a potential obligation | $ 1,700 | ||
| Universal Beijing Resort | |||
| Commitments And Contingencies [Line Items] | |||
| Operating lease assets and liabilities recognized | $ 2,800 | ||