.0 million of 5.000% ( 5.000 % ) senior notes due 2020 and $ 650.0 million of 6.200% ( 6.200 % ) senior notes due 2040 . we used the net proceeds from these senior notes as follows : ( i ) $ 433.7 million to redeem the 6.125% ( 6.125 % ) senior notes due 2014 at a premium of 102.042% ( 102.042 % ) ( $ 425.0 million principal outstanding ) ; ( ii ) $ 621.8 million to redeem the 7.250% ( 7.250 % ) senior notes due 2015 at a premium of 103.625% ( 103.625 % ) ( $ 600