Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2023

Fair Value Disclosures [Abstract]

Schedule of fair value, assets and liabilities measured on recurring basis

The following tables provide information by level for assets and liabilities that are measured at fair value on a recurring basis.

	Fair Value at				Fair Value Measurements Using Inputs Considered as
					Level 1				Level 2				Level 3
Description (Millions)	March 31, 2023		December 31, 2022		March 31, 2023		December 31, 2022		March 31, 2023		December 31, 2022		March 31, 2023		December 31, 2022
Assets:
Available-for-sale:
Marketable securities:
Commercial paper	$	85	$	213	$	—	$	—	$	85	$	213	$	—	$	—
Certificates of deposit/time deposits	56		21		—		—		56		21		—		—
U.S. treasury securities	—		—		—		—		—		—		—		—
U.S. municipal securities	27		27		—		—		—		—		27		27
Derivative instruments — assets:
Foreign currency forward/option contracts	135		217		—		—		135		217		—		—
Liabilities:
Derivative instruments — liabilities:
Foreign currency forward/option contracts	60		40		—		—		60		40		—		—
Interest rate contracts	90		102		—		—		90		102		—		—

Schedule of fair value, assets measured on recurring basis, unobservable input reconciliation

The following table provides a reconciliation of the beginning and ending balances of items measured at fair value on a recurring basis in the table above that used significant unobservable inputs (level 3).

Marketable securities — certain U.S. municipal securities only	Three months ended March 31,
(Millions)	2023		2022
Beginning balance	$	27	$	30
Total gains or losses:
Included in earnings	—		—
Included in other comprehensive income	—		—
Purchases and issuances	—		—
Sales and settlements	—		—
Transfers in and/or out of level 3	—		—
Ending balance	$	27	$	30
Change in unrealized gains or losses for the period included in earnings for securities held at the end of the reporting period	—		—

Schedule of fair value of financial instruments by balance sheet grouping

Information with respect to the carrying amounts and estimated fair values of these financial instruments follow:

	March 31, 2023				December 31, 2022
(Millions)	Carrying Value		Fair Value		Carrying Value		Fair Value
Long-term debt, excluding current portion	$	12,948	$	11,635	$	14,001	$	12,484