Shareholder Report, Line Graph (Details) - USD ($) |
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| C000249911 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | PIMCO Mortgage-Backed Securities Active Exchange-Traded Fund (at NAV) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 12,022 | $ 12,018 | $ 11,715 | $ 11,654 | $ 11,823 | $ 11,644 | $ 11,974 | $ 11,790 | $ 11,635 | $ 11,337 | $ 11,227 | $ 10,975 | $ 11,292 | $ 11,152 | $ 11,278 | $ 11,291 | $ 10,871 | $ 10,337 | $ 10,612 | $ 10,907 | $ 10,999 | $ 11,007 | $ 10,961 | $ 11,035 | $ 10,953 | $ 10,815 | $ 11,054 | $ 10,683 | $ 10,738 | $ 10,342 | $ 10,523 | $ 11,106 | $ 11,434 | $ 11,091 | $ 11,367 | $ 11,282 | $ 11,737 | $ 12,065 | $ 12,171 | $ 12,314 | $ 12,335 | $ 12,338 | $ 12,351 | $ 12,365 | $ 12,368 | $ 12,290 | $ 12,257 | $ 12,295 | $ 12,218 | $ 12,277 | $ 12,312 | $ 12,247 | $ 12,199 | $ 12,162 | $ 12,126 | $ 12,092 | $ 12,038 | $ 11,983 | $ 11,926 | $ 11,856 | $ 11,707 | $ 11,822 | $ 11,717 | $ 11,631 | $ 11,611 | $ 11,602 | $ 11,562 | $ 11,533 | $ 11,446 | $ 11,412 | $ 11,326 | $ 11,188 | $ 11,197 | $ 11,036 | $ 11,036 | $ 10,932 | $ 10,788 | $ 10,704 | $ 10,758 | $ 10,805 | $ 10,742 | $ 10,736 | $ 10,728 | $ 10,655 | $ 10,690 | $ 10,633 | $ 10,680 | $ 10,790 | $ 10,748 | $ 10,753 | $ 10,749 | $ 10,753 | $ 10,647 | $ 10,604 | $ 10,601 | $ 10,517 | $ 10,455 | $ 10,441 | $ 10,369 | $ 10,338 | $ 10,316 | $ 10,512 | $ 10,513 | $ 10,431 | $ 10,429 | $ 10,388 | $ 10,308 | $ 10,287 | $ 10,246 | $ 10,215 | $ 10,185 | $ 10,077 | $ 10,081 | $ 10,089 | $ 10,082 | $ 10,026 | $ 10,027 | $ 9,943 | $ 10,017 | $ 10,026 | $ 10,000 |
| PIMCO INDEX: Bloomberg U.S. Aggregate Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 11,564 | 11,560 | 11,311 | 11,251 | 11,438 | 11,319 | 11,606 | 11,453 | 11,291 | 11,033 | 10,930 | 10,747 | 11,026 | 10,925 | 11,082 | 11,112 | 10,702 | 10,239 | 10,403 | 10,674 | 10,743 | 10,750 | 10,789 | 10,908 | 10,842 | 10,573 | 10,854 | 10,530 | 10,578 | 10,202 | 10,336 | 10,803 | 11,117 | 10,852 | 11,025 | 10,954 | 11,386 | 11,712 | 11,844 | 12,105 | 12,136 | 12,100 | 12,103 | 12,209 | 12,232 | 12,097 | 12,013 | 11,974 | 11,880 | 12,030 | 12,206 | 12,294 | 12,277 | 12,158 | 12,213 | 12,219 | 12,319 | 12,137 | 12,062 | 12,006 | 11,796 | 11,866 | 11,656 | 11,436 | 11,444 | 11,450 | 11,415 | 11,476 | 11,187 | 11,162 | 11,024 | 10,831 | 10,829 | 10,625 | 10,631 | 10,519 | 10,329 | 10,268 | 10,350 | 10,417 | 10,350 | 10,348 | 10,360 | 10,287 | 10,364 | 10,298 | 10,397 | 10,518 | 10,470 | 10,483 | 10,477 | 10,527 | 10,434 | 10,389 | 10,399 | 10,320 | 10,241 | 10,246 | 10,178 | 10,158 | 10,144 | 10,389 | 10,470 | 10,476 | 10,488 | 10,422 | 10,238 | 10,235 | 10,196 | 10,103 | 10,032 | 9,896 | 9,928 | 9,954 | 9,953 | 9,886 | 9,900 | 9,832 | 9,940 | 9,964 | 10,000 |
| PIMCO INDEX: Bloomberg U.S. MBS Fixed-Rate Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. MBS Fixed-Rate Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 11,163 | $ 11,165 | $ 10,888 | $ 10,832 | $ 11,014 | $ 10,869 | $ 11,186 | $ 11,054 | $ 10,879 | $ 10,600 | $ 10,477 | $ 10,272 | $ 10,592 | $ 10,481 | $ 10,655 | $ 10,704 | $ 10,262 | $ 9,753 | $ 9,959 | $ 10,287 | $ 10,372 | $ 10,380 | $ 10,424 | $ 10,501 | $ 10,447 | $ 10,248 | $ 10,526 | $ 10,190 | $ 10,235 | $ 9,834 | $ 9,976 | $ 10,507 | $ 10,879 | $ 10,540 | $ 10,712 | $ 10,595 | $ 10,980 | $ 11,273 | $ 11,383 | $ 11,555 | $ 11,565 | $ 11,576 | $ 11,598 | $ 11,640 | $ 11,659 | $ 11,586 | $ 11,591 | $ 11,612 | $ 11,548 | $ 11,607 | $ 11,685 | $ 11,676 | $ 11,651 | $ 11,643 | $ 11,648 | $ 11,660 | $ 11,656 | $ 11,635 | $ 11,646 | $ 11,631 | $ 11,558 | $ 11,437 | $ 11,320 | $ 11,241 | $ 11,210 | $ 11,201 | $ 11,162 | $ 11,154 | $ 11,055 | $ 11,010 | $ 10,932 | $ 10,792 | $ 10,799 | $ 10,644 | $ 10,653 | $ 10,570 | $ 10,381 | $ 10,289 | $ 10,354 | $ 10,418 | $ 10,355 | $ 10,366 | $ 10,361 | $ 10,289 | $ 10,341 | $ 10,276 | $ 10,343 | $ 10,466 | $ 10,432 | $ 10,447 | $ 10,450 | $ 10,474 | $ 10,398 | $ 10,351 | $ 10,393 | $ 10,328 | $ 10,261 | $ 10,258 | $ 10,209 | $ 10,213 | $ 10,213 | $ 10,392 | $ 10,420 | $ 10,391 | $ 10,379 | $ 10,357 | $ 10,274 | $ 10,261 | $ 10,244 | $ 10,214 | $ 10,176 | $ 10,045 | $ 10,048 | $ 10,062 | $ 10,055 | $ 9,996 | $ 9,988 | $ 9,925 | $ 10,002 | $ 10,004 | $ 10,000 |