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Fair Value of Financial Instruments (Unaudited)
3 Months Ended
Mar. 31, 2022
Fair Value Disclosures [Abstract]  
FAIR VALUE OF FINANCIAL INSTRUMENTS FAIR VALUE OF FINANCIAL INSTRUMENTS
The company holds a portfolio of marketable securities to partially fund non-qualified employee benefit plans. A portion of these securities are held in common/collective trust funds and are measured at fair value using net asset value (NAV) per share as a practical expedient; and therefore are not required to be categorized in the fair value hierarchy table below. Marketable securities are included in Other non-current assets in the unaudited condensed consolidated statements of financial position.
The company’s derivative portfolio consists primarily of foreign currency forward contracts. Where model-derived valuations are appropriate, the company utilizes the income approach to determine the fair value using internal models based on observable market inputs.
The following table presents the financial assets and liabilities the company records at fair value on a recurring basis identified by the level of inputs used to determine fair value:
March 31, 2022December 31, 2021
$ in millionsLevel 1Level 2Level 3TotalLevel 1Level 2Level 3Total
Financial Assets
Marketable securities$382 $ $7 $389 $393 $$$401 
Marketable securities valued using NAV15 17 
Total marketable securities382  7 404 393 418 
Derivatives (1) (1)— (1)— (1)
The notional value of the company’s foreign currency forward contracts at March 31, 2022 and December 31, 2021 was $126 million and $120 million, respectively. At March 31, 2022 and December 31, 2021, no portion of the notional value was designated as a cash flow hedge.
The derivative fair values and related unrealized gains/losses at March 31, 2022 and December 31, 2021 were not material.
There were no transfers of financial instruments into or out of Level 3 of the fair value hierarchy during the three months ended March 31, 2022.
The carrying value of cash and cash equivalents and commercial paper approximates fair value.
Long-term Debt
The estimated fair value of long-term debt was $13.8 billion and $15.1 billion as of March 31, 2022 and December 31, 2021, respectively. We calculated the fair value of long-term debt using Level 2 inputs, based on interest rates available for debt with terms and maturities similar to the company’s existing debt arrangements. The current portion of long-term debt is recorded in Other current liabilities in the unaudited condensed consolidated statements of financial position.
On September 2, 2021, the company completed an exchange offer to eligible holders of the outstanding notes of our direct wholly owned subsidiary, Northrop Grumman Systems Corporation (“NGSC”) maturing through 2036. An aggregate principal amount of $422 million of the NGSC notes was exchanged for $422 million of Northrop Grumman Corporation notes with the same interest rates and maturity dates as the NGSC notes exchanged. Because the debt instruments are not substantially different, the exchange was treated as a debt modification for accounting purposes with no gain or loss recognized.
Repayments of Senior Notes
In March 2021, the company repaid $700 million of 3.50 percent unsecured notes upon maturity.
In March 2021, the company redeemed $1.5 billion of 2.55 percent unsecured notes due October 2022. The company recorded a pre-tax charge of $54 million principally related to the premium paid on the redemption, which was recorded in Other, net in the unaudited condensed consolidated statements of earnings and comprehensive income.