Documents from the U.S. Securities and Exchange Commission (SEC) show: SpaceX (SPCX.O) issued $7 billion in senior notes maturing in 2031 with a coupon rate of 5.35%; issued $6 billion in senior notes maturing in 2033 with a coupon rate of 5.65%; issued $6 billion in senior notes maturing in 2036 with a coupon rate of 5.88%; issued $2.5 billion in senior notes maturing in 2046 with a coupon rate of 6.60%; issued $3.5 billion in senior notes maturing in 2056 with a coupon rate of 6.65%.