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Fair Value Measurements (Tables)
 12 Months Ended
Dec. 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 at December 31, 2023 and 2022 .
Fair Value atFair Value Measurements Using Inputs Considered as
Level 1Level 2Level 3
Description (Millions)20232022202320222023202220232022
Assets:
Available-for-sale:
Marketable securities:
Commercial paper$— $213 $— $— $— $213 $— $— 
Certificates of deposit/time deposits 49 21 — — 49 21 — — 
U.S. municipal securities 24 27 — — — — 24 27 
Derivative instruments — assets:
Foreign currency forward/option contracts 84 217 — — 84 217 — — 
Liabilities:
Derivative instruments — liabilities:
Foreign currency forward/option contracts 39 40 — — 39 40 — — 
Interest rate contracts88 102 — — 88 102 — — 
Schedule of Fair Value, by Balance Sheet Grouping Information with respect to the carrying amounts and estimated fair values of these financial instruments follow:
December 31, 2023December 31, 2022
(Millions)Carrying ValueFair ValueCarrying ValueFair Value
Long-term debt, excluding current portion$13,088 $11,859 $14,001 $12,484