Comcast has placed $27 billion in bonds as it looks to fund its $40 billion purchase of Sky.
The cable giant plans to fund the remainder of the purchase through term loans, according to a filing made on Tuesday.
The bond offer is the second largest of the year to date.
Investors have already indicated that they are prepared to take up $88 billion of debt.
Comcast’s extended bid to take control of Sky was completed last month with Rupert Murdoch’s 21st Century Fox indicating its willingness to sell its own 39% in the broadcaster.