TWO QUERIES AND DIFFERENCE OF THEIR SUMS : BELOW ARE TWO SIMPLE/SIMILAR QUERIES THAT I WOULD LIKE TO JOIN INTO ONE.  I ALSO WANT TO HAVE A COLUMN CONTAINING THE DIFFERENCE BETWEEN THE TWO SUMS IN EITHER QUERY.  

(I've found help on the join of two queries but I think there is a simpler solution and I am new to SQL)

I want my output to be 4 columns:
1)Post_Date
2)All_Payments
3)CCP_Payments
4)All_Payments - CCP_Payments (SUBTRACT THE TWO)

QUERY 1:

    SELECT
    TDL.POST_DATE
    , SUM(CASE WHEN TDL.DETAIL_TYPE IN(2,5,11,20,22,32,33) THEN TDL.AMOUNT*-1 ELSE 0 END) PAYMENTS
    
    FROM
    STG_OJDT.STG_CL.CLARITY_TDL_TRAN TDL
    
    WHERE
    TDL.POST_DATE = '2018-08-01 00:00:00'
    AND TDL.SERV_AREA_ID = 10
    
    GROUP BY 
    TDL.POST_DATE

    

QUERY 2:

    SELECT
    TDL.POST_DATE
    , SUM(CASE WHEN TDL.DETAIL_TYPE IN(2,5,11,20,22,32,33) THEN TDL.AMOUNT*-1 ELSE 0 END) CCP_PAYMENTS
    
    FROM
    STG_OJDT.STG_CL.CLARITY_TDL_TRAN TDL
    
    WHERE
    TDL.POST_DATE = '2018-08-01 00:00:00'
    AND TDL.SERV_AREA_ID = 10
    AND TDL.BILL_AREA_ID IN (810000020, 810000025, 810000030)
    GROUP BY 
    TDL.POST_DATE




