. ( 3 ) shares repurchased pursuant to the stock repurchase program publicly announced on august 12 , 2004 . on august 21 , 2018 , the board of directors approved an increase to the current authorization for the stock repurchase program by an additional $ 2.0 billion to $ 8.2 billion in the aggregate . under the repurchase program , we may repurchase outstanding shares of our common stock froff m time to time in the open market and through privately negotiated transactions