Other Expenses Interest Expense [Member] Average Annual Total Returns |
12 Months Ended | 60 Months Ended | 120 Months Ended | ||||
|---|---|---|---|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2025 |
Dec. 31, 2025 |
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| Bloomberg Global Aggregate Bond Index (U.S. Dollar hedged) (reflects no deduction for fees, expenses, or taxes) | |||||||
| Prospectus [Line Items] | |||||||
| Average Annual Return, Percent | 4.86% | 0.34% | 2.39% | ||||
| Composite Benchmark (reflects no deduction for fees, expenses, or taxes) | |||||||
| Prospectus [Line Items] | |||||||
| Average Annual Return, Percent | [1] | 11.19% | 4.24% | 5.69% | |||
| Class 1 | |||||||
| Prospectus [Line Items] | |||||||
| Average Annual Return, Percent | [2] | 10.91% | 2.57% | 3.96% | |||
| Class 1 | After Taxes on Distributions | |||||||
| Prospectus [Line Items] | |||||||
| Average Annual Return, Percent | [2] | 9.30% | 0.49% | 2.33% | |||
| Class 1 | After Taxes on Distributions and Sales | |||||||
| Prospectus [Line Items] | |||||||
| Average Annual Return, Percent | [2] | 6.50% | 1.20% | 2.44% | |||
| Class 2 | |||||||
| Prospectus [Line Items] | |||||||
| Average Annual Return, Percent | 11.07% | 2.71% | 4.11% | ||||
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