Marketable Securities

3 Months Ended

Mar. 31, 2021

Marketable Securities.

Marketable Securities

NOTE 9. Marketable Securities

The Company invests in asset-backed securities, 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, 2021		December 31, 2020
Corporate debt securities	$	7	$	7
Commercial paper		384		237
Certificates of deposit/time deposits		7		31
U.S. treasury securities		100		125
U.S. municipal securities		3		4
Current marketable securities	$	501	$	404
U.S. municipal securities	$	31	$	30
Non-current marketable securities	$	31	$	30
Total marketable securities	$	532	$	434

At March 31, 2021 and December 31, 2020, gross unrealized, gross realized, and net realized gains and/or losses (pre-tax) were not material.

The balances at March 31, 2021 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)	March 31, 2021
Due in one year or less	$	501
Due after one year through five years		15
Due after five years through ten years		16
Total marketable securities	$	532