Aside from the military reorganization, the act established the National Security Council, a central place of coordination for national security policy in the executive branch, and the Central Intelligence Agency, the U.S.'s first peacetime intelligence agency.
Here they are for comparison
https://usbreakingnews.net/trump-creates-office-of-the-former-president
https://en.wikipedia.org/wiki/National_Security_Act_of_1947?oldid=cur
Aside from the military reorganization, the act established the National Security Council, a central place of coordination for national security policy in the executive branch, and the Central Intelligence Agency, the U.S.'s first peacetime intelligence agency.