(Bloomberg) -- Apple Inc. is tapping the U.S. investment-grade bond market with a new sale in as many as four parts as the tech giant increasingly looks to return cash to shareholders.

The longest portion of the offering, a 40-year security, may yield 1.15 percentage points above Treasuries, according to a person familiar with the matter, who asked not to be identified as the details are private.

Proceeds from the sale will be used for general corporate purposes, including share repurchases, dividend payments, funding for capital expenditures and acquisitions. S&P Global Ratings assigned a AA+ rating to the proposed bonds.

Apple, the world’s largest company by market capitalization, has been an active bond issuer of late, capitalizing on historically cheap borrowing costs. The iPhone maker sold $14 billion of bonds in February. Until 2020, Apple hadn’t borrowed in the U.S. investment-grade market more than once in a calendar year since 2017. Now, it’s selling bonds for the fourth time since May 2020.

Read more deal details: Apple’s Brings New Four-Part Debt Offering

Shareholder returns are in focus for Apple, which has been reducing its massive cash pile with hundreds of billions of dollars worth of share buybacks and dividend payments in recent years.

“As Apple’s debt continues to climb, we anticipate net cash to fall by more than $70 billion over the next few years, after cash had declined by $91 billion since the company initiated a more aggressive shareholder-return policy in 2018,” Bloomberg Intelligence analyst Robert Schiffman wrote Thursday.

Read more from BI: Apple Keeps Waving in Cash and Debt in Droves

In its most recent earnings report, Apple reported profit that nearly doubled and record revenue, boosted by strong iPhone sales. But the world’s most valuable company also warned that the torrid pace may be slowing and that chip shortages will contribute to a lower rate of growth this quarter.

Apple continues to make significant investments to support long-term growth. It generated $21 billion of operating cash flow and returned $29 billion to shareholders during the third quarter.

The company’s outstanding 30-year bonds issued earlier this year took a hit after the new sale was reported, widening 3 basis points Thursday morning in New York.

Barclays Plc, Goldman Sachs Group Inc. and Bank of America Corp. are managing the sale, the person said.

(Updates with background information throughout)

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