Fair Value Measurements And Disclosure (Notional Amount Of Our Outstanding Derivative Positions) (Details) - USD ($) $ in Millions |
Jun. 30, 2024 |
Dec. 31, 2023 |
---|---|---|
Derivative [Line Items] | ||
Notional amounts of outstanding derivative positions | $ 37,101 | $ 39,756 |
Interest rate swaps | ||
Derivative [Line Items] | ||
Notional amounts of outstanding derivative positions | 1,750 | 1,750 |
Cross-currency swaps | ||
Derivative [Line Items] | ||
Notional amounts of outstanding derivative positions | $ 35,351 | $ 38,006 |