diff --git a/core/java/android/net/NetworkPolicyManager.java b/core/java/android/net/NetworkPolicyManager.java
index ec83c4e8fa752..053856bc798f8 100644
--- a/core/java/android/net/NetworkPolicyManager.java
+++ b/core/java/android/net/NetworkPolicyManager.java
@@ -479,7 +479,8 @@ public class NetworkPolicyManager {
      * @param overrideMask the bitmask that specifies which of the overrides is being
      *            set or cleared.
      * @param overrideValue the override values to set or clear.
-     * @param networkTypes the network types this override applies to.
+     * @param networkTypes the network types this override applies to. If no
+     *            network types are specified, override values will be ignored.
      *            {@see TelephonyManager#getAllNetworkTypes()}
      * @param timeoutMillis the timeout after which the requested override will
      *            be automatically cleared, or {@code 0} to leave in the
diff --git a/telephony/java/android/telephony/SubscriptionManager.java b/telephony/java/android/telephony/SubscriptionManager.java
index d8ac082985306..2616ec8cc04f6 100644
--- a/telephony/java/android/telephony/SubscriptionManager.java
+++ b/telephony/java/android/telephony/SubscriptionManager.java
@@ -2785,7 +2785,8 @@ public class SubscriptionManager {
      * @param subId the subscriber this override applies to.
      * @param overrideUnmetered set if the billing relationship should be
      *            considered unmetered.
-     * @param networkTypes the network types this override applies to.
+     * @param networkTypes the network types this override applies to. If no
+     *            network types are specified, override values will be ignored.
      *            {@see TelephonyManager#getAllNetworkTypes()}
      * @param timeoutMillis the timeout after which the requested override will
      *            be automatically cleared, or {@code 0} to leave in the
@@ -2849,7 +2850,8 @@ public class SubscriptionManager {
      * @param subId the subscriber this override applies to.
      * @param overrideCongested set if the subscription should be considered
      *            congested.
-     * @param networkTypes the network types this override applies to.
+     * @param networkTypes the network types this override applies to. If no
+     *            network types are specified, override values will be ignored.
      *            {@see TelephonyManager#getAllNetworkTypes()}
      * @param timeoutMillis the timeout after which the requested override will
      *            be automatically cleared, or {@code 0} to leave in the