The Company invests in certificates of deposit/time deposits, commercial paper, and other securities. The following is a summary of amounts recorded on the Consolidated Balance Sheet for marketable securities (current and non-current).


(Millions)	March 31, 2024		December 31, 2023


Certificates of deposit/time deposits	$	56	$	49

U.S. municipal securities	4		4
Current marketable securities	60		53

U.S. municipal securities	20		20
Non-current marketable securities	20		20

Total marketable securities	$	80	$	73

At March 31, 2024 and December 31, 2023, gross unrealized, gross realized, and net realized gains and/or losses (pre-tax) were not material.

The balances at March 31, 2024 for marketable securities by contractual maturity are shown below. Actual maturities may differ from contractual maturities because the issuers of the securities may have the right to prepay obligations without prepayment penalties.


(Millions)
Due in one year or less	$	60
Due after one year through five years	11
Due after five years through ten years	9
Total marketable securities	$	80