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Fair Value Measurements (Tables)
3 Months Ended
Mar. 31, 2023
Fair Value Disclosures [Abstract]  
Financial Assets and Liabilities Carried at Fair Value
A summary of financial assets that are measured at fair value on a recurring basis were as follows ($ in millions):
BalanceQuoted Prices in Active Market (Level 1)Significant Other Observable Inputs (Level 2)Significant Unobservable Inputs (Level 3)
March 31, 2023December 31, 2022March 31, 2023December 31, 2022March 31, 2023December 31, 2022March 31, 2023December 31, 2022
Assets:
Available-for-sale debt securities$$11 $— $— $$11 $— $— 
Investment in equity securities318 315 21 16 — — — — 
Cross-currency swap derivative contracts682 653 — — 682 653 — — 
Carrying Amounts and Fair Values of Financial Instruments
The carrying amounts and fair values of the Company’s other financial instruments were as follows ($ in millions):
 March 31, 2023December 31, 2022
 Carrying AmountFair ValueCarrying AmountFair Value
Debt obligations:
Notes payable and current portion of long-term debt$1,571 $1,551 $591 $584 
Long-term debt18,261 15,606 19,086 16,079