Janus Henderson Low Duration Multi-Sector Income Fund Average Annual Total Returns - Class D Shares [Member]

12 Months Ended

60 Months Ended

120 Months Ended

Dec. 31, 2025

Dec. 31, 2025

Dec. 31, 2025

Bloomberg U.S. Aggregate Bond Index (reflects no deduction for expenses, fees, or taxes)[Member]

Prospectus [Line Items]

Average Annual Return, Percent

7.30%

(0.36%)

2.01%

Bloomberg U.S. Aggregate Bond 1-3 Year Index (reflects no deduction for expenses, fees, or taxes)[Member]

Prospectus [Line Items]

Average Annual Return, Percent

5.39%

1.98%

2.08%

Class D | After Taxes on Distributions

Prospectus [Line Items]

Average Annual Return, Percent

5.11%

2.16%

1.49%

Class D | After Taxes on Distributions and Sales

Prospectus [Line Items]

Average Annual Return, Percent

^[1]

3.91%

2.08%

1.53%

Class D | Return Before Taxes[Member]

Prospectus [Line Items]

Average Annual Return, Percent

6.64%

3.45%

2.69%

[1]	If the Fund incurs a loss, which generates a tax benefit, the Return After Taxes on Distributions and Sale of Fund Shares may exceed the Fund’s other return figures.