XML 31 R17.htm IDEA: XBRL DOCUMENT v3.21.4
Fair Value of Financial Instruments
12 Months Ended
Dec. 31, 2021
Fair Value Disclosures [Abstract]  
Fair Value Disclosures
9. FAIR VALUE OF FINANCIAL INSTRUMENTS
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. See Note 1 for the definitions of these levels and for further information on our financial instruments.
 December 31, 2021December 31, 2020
$ in millionsLevel 1Level 2Level 3TotalLevel 1Level 2Level 3Total
Financial Assets
Marketable securities$393 $1 $7 $401 $377 $$— $378 
Marketable securities valued using NAV17 18 
Total marketable securities393 1 7 418 377 — 396 
Derivatives (1) (1)— — — — 
The notional value of the company’s foreign currency forward contracts at December 31, 2021 and 2020 was $120 million and $133 million, respectively. At December 31, 2021 and 2020, no portion of the notional value was designated as a cash flow hedge.
The derivative fair values and related unrealized gains/losses at December 31, 2021 and 2020 were not material.
There were no transfers of financial instruments into or out of Level 3 of the fair value hierarchy during the years ended December 31, 2021 and 2020.
The carrying value of cash and cash equivalents and commercial paper approximates fair value.