Goldman Sachs increased the size of its 50-year debt offering to $1.3 billion from an original $250 million target because of strong demand.
The debt sale is unusual for banks, which typically issue notes maturing in 10 years or sooner.
The 52 million notes, available to investors for $25 each and priced at 6.125 percent, will mature in 2060 unless the bank buys them back earlier, according to a regulatory filing.
The original offering was for 10 million notes.
New York-based Goldman will have an option to buy back the notes after five years, the filing said.
Underwriters include Goldman Sachs, Bank of America, Citigroup, UBS and Wells Fargo, according to the filing.