Shareholder Report, Line Graph (Details) - USD ($) |
1 Months Ended | 4 Months Ended | 7 Months Ended | 10 Months Ended | 13 Months Ended | 16 Months Ended | 19 Months Ended | 22 Months Ended | 25 Months Ended | 28 Months Ended | 31 Months Ended | 34 Months Ended | 37 Months Ended | 40 Months Ended | 43 Months Ended | 46 Months Ended | 49 Months Ended | 52 Months Ended | 55 Months Ended | 58 Months Ended | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Jul. 26, 2021 |
Aug. 31, 2021 |
Nov. 30, 2021 |
Feb. 28, 2022 |
May 31, 2022 |
Aug. 31, 2022 |
Nov. 30, 2022 |
Feb. 28, 2023 |
May 31, 2023 |
Aug. 31, 2023 |
Nov. 30, 2023 |
Feb. 29, 2024 |
May 31, 2024 |
Aug. 31, 2024 |
Nov. 30, 2024 |
Feb. 28, 2025 |
May 31, 2025 |
Aug. 31, 2025 |
Nov. 30, 2025 |
Feb. 28, 2026 |
May 31, 2026 |
|
| C000222692 | |||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||
| Accumulated Value | $ 10,000 | $ 10,110 | $ 10,000 | $ 9,706 | $ 9,257 | $ 8,941 | $ 9,012 | $ 9,035 | $ 9,183 | $ 9,447 | $ 9,532 | $ 10,062 | $ 10,278 | $ 10,732 | $ 10,959 | $ 11,021 | $ 11,109 | $ 11,617 | $ 11,971 | $ 12,375 | $ 12,661 |
| C000222693 | |||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||
| Accumulated Value | 500,000 | 505,500 | 500,000 | 485,955 | 462,984 | 447,671 | 451,754 | 452,758 | 460,163 | 473,386 | 478,146 | 504,538 | 515,919 | 539,222 | 551,144 | 553,994 | 558,985 | 584,494 | 602,240 | 623,090 | 638,035 |
| Bloomberg U.S. Aggregate Bond Index | |||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||
| Accumulated Value | 10,000 | 10,011 | 9,951 | 9,603 | 9,040 | 8,858 | 8,673 | 8,670 | 8,847 | 8,753 | 8,776 | 8,958 | 8,962 | 9,391 | 9,379 | 9,479 | 9,451 | 9,686 | 9,914 | 10,072 | 9,936 |
| Bloomberg U.S. Aggregate Bond Index | |||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||
| Accumulated Value | 500,000 | 500,558 | 497,555 | 480,173 | 452,013 | 442,914 | 433,671 | 433,491 | 442,327 | 437,629 | 438,788 | 447,914 | 448,102 | 469,562 | 468,955 | 473,930 | 472,563 | 484,288 | 495,691 | 503,600 | 496,821 |
| S&P Target Date Retirement Income Index | |||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||
| Accumulated Value | 10,000 | 10,080 | 10,004 | 9,748 | 9,304 | 9,061 | 9,104 | 9,161 | 9,321 | 9,491 | 9,567 | 9,998 | 10,157 | 10,634 | 10,751 | 10,844 | 10,960 | 11,427 | 11,773 | 12,124 | 12,340 |
| S&P Target Date Retirement Income Index | |||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||
| Accumulated Value | $ 500,000 | $ 504,004 | $ 500,211 | $ 487,407 | $ 465,187 | $ 453,053 | $ 455,187 | $ 458,063 | $ 466,074 | $ 474,541 | $ 478,332 | $ 499,907 | $ 507,850 | $ 531,711 | $ 537,532 | $ 542,209 | $ 548,002 | $ 571,328 | $ 588,651 | $ 606,182 | $ 616,987 |