Customer Bank account add into customer master inquiry

1. You can find the correct value for the CustomerPaymentMethodDetail.DetailID field used in the join on the Payment Methods screen:

It seems that in the first screenshot you posted above, that is the correct value.

2. The results covered by asterisks mean that the field is encrypted. I haven’t found a simple solution — only to create a DAC extension and override the Value field along with all of its attributes. This works, but you have to be aware that this code will decrypt the values of the CustomerPaymentMethodDetail.Value field everywhere it is used in the system.
The following code is a DAC extension with an exact copy-paste of the base code, only adding the IsViewDecrypted = true property to the PXRSACryptStringWithMask attribute:

using PX.Data;
using PX.Objects.CA;
using System;

namespace PX.Objects.AR
{
	public class CustomerPaymentMethodDetailExt : PXCacheExtension<PX.Objects.AR.CustomerPaymentMethodDetail>
	{
		#region Value
		public abstract class value : PX.Data.BQL.BqlString.Field<value> { }
		protected String _Value;
		/// <summary>
		/// The value for the customer payment method setting,
		/// such as the actual credit card number, the expiration date.
		/// This value in this field can be subject to dynamic value
		/// validation depending on the regular expression defined
		/// in the corresponding <see cref="PaymentMethodDetail"/>.
		/// </summary>
		//[PXDBStringWithMask(255, typeof(Search<PaymentMethodDetail.entryMask, Where<PaymentMethodDetail.paymentMethodID, Equal<Current<CustomerPaymentMethodDetail.paymentMethodID>>,
		//                              And<PaymentMethodDetail.detailID, Equal<Current<CustomerPaymentMethodDetail.detailID>>>>>), IsUnicode = true)]
		[DynamicValueValidation(typeof(Search<PaymentMethodDetail.validRegexp, Where<PaymentMethodDetail.paymentMethodID, Equal<Current<CustomerPaymentMethodDetail.paymentMethodID>>,
										And<PaymentMethodDetail.useFor, Equal<PaymentMethodDetailUsage.useForARCards>,
									  And<PaymentMethodDetail.detailID, Equal<Current<CustomerPaymentMethodDetail.detailID>>>>>>))]
		[PXDefault(PersistingCheck = PXPersistingCheck.Nothing)]
		[PXRSACryptStringWithMaskAttribute(1028, typeof(Search<PaymentMethodDetail.entryMask, Where<PaymentMethodDetail.paymentMethodID, Equal<Current<CustomerPaymentMethodDetail.paymentMethodID>>,
									  And<PaymentMethodDetail.useFor, Equal<PaymentMethodDetailUsage.useForARCards>,
									  And<PaymentMethodDetail.detailID, Equal<Current<CustomerPaymentMethodDetail.detailID>>>>>>), IsUnicode = true, IsViewDecrypted = true)]
		//[PXRSACryptStringAttribute(1028)]
		[PXUIField(DisplayName = "Value")]
		[PXPersonalDataFieldAttribute.Value]
		public virtual String Value
		{
			get
			{
				return this._Value;
			}
			set
			{
				this._Value = value;
			}
		}
		#endregion
	}
}

This solution is based on 25R2. If you are using a different version, it may require some adjustments — let me know if so. Hope it helps.