Marketable Securities (Tables)

3 Months Ended

Mar. 31, 2022

Debt Securities, Available-for-sale [Abstract]

Schedule of marketable securities

The following is a summary of amounts recorded on the Consolidated Balance Sheet for marketable securities (current and non-current).

(Millions)	March 31, 2022		December 31, 2021
Commercial paper	$	35	$	109
Certificates of deposit/time deposits	24		14
U.S. treasury securities	50		75
U.S. municipal securities	3		3
Current marketable securities	112		201
U.S. municipal securities	27		27
Non-current marketable securities	27		27
Total marketable securities	$	139	$	228

Schedule of marketable securities by contractual maturity

The balances at March 31, 2022 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, 2022
Due in one year or less	$	112
Due after one year through five years	15
Due after five years through ten years	12
Total marketable securities	$	139