Financial Instruments: (Hedging Activity Affect on AOCI) (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2023 |
Dec. 31, 2022 |
Dec. 31, 2021 |
|
| Derivatives used in Net Investment Hedge, Net of Tax [Roll Forward] | |||
| (Gains) losses transferred to earnings, net of income taxes of $32 in 2023, $35 in 2022 and $7 in 2021 | $ (220) | $ (219) | $ (35) |
| Gains (losses) recognized, net of income taxes of $(30) in 2023, $(99) in 2022 and $(20) in 2021 | 195 | 481 | 124 |
| Other Comprehensive Income (Loss) | |||
| Derivatives used in Net Investment Hedge, Net of Tax [Roll Forward] | |||
| Gains (loss), beginning balance | 266 | 4 | (85) |
| (Gains) losses transferred to earnings, net of income taxes of $32 in 2023, $35 in 2022 and $7 in 2021 | (220) | (219) | (35) |
| Gains (losses) recognized, net of income taxes of $(30) in 2023, $(99) in 2022 and $(20) in 2021 | 195 | 481 | 124 |
| Gains (loss), ending balance | $ 241 | $ 266 | $ 4 |