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Financing Arrangement (Tables)
 3 Months Ended
Jun. 30, 2023
Debt Instruments [Abstract]  
Schedule of Carrying Values Of Liability and Equity Components of Senior Notes [Table Text Block]
The carrying and fair values of the Senior Notes are as follows (in millions):
  
As of
June 30, 2023
As of
March 31, 2023
Senior Notes:
4.80% Senior Notes due 2026
$400 $400 
1.85% Senior Notes due 2031
750 750 
2.95% Senior Notes due 2051
750 750 
Total principal amount$1,900 $1,900 
Unaccreted discount(6)(6)
Unamortized debt issuance costs(14)(14)
Net carrying value of Senior Notes$1,880 $1,880 
Fair value of Senior Notes (Level 2)$1,510 $1,540 
Interest and Other Income The following table summarizes our interest expense recognized for the three months ended June 30, 2023 and 2022 that is included in interest and other income (expense), net on our Condensed Consolidated Statements of Operations (in millions):
Three Months Ended
June 30,
20232022
Amortization of debt issuance costs$(1)$— 
Coupon interest expense(14)(14)
Total interest expense$(15)$(14)