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Debt - Narrative (Details)
₨ in Millions, $ in Millions
1 Months Ended
Apr. 30, 2023
USD ($)
Apr. 30, 2023
INR (₨)
Mar. 31, 2023
USD ($)
Jul. 31, 2022
USD ($)
Jul. 31, 2022
INR (₨)
Sep. 30, 2023
USD ($)
Jul. 31, 2023
USD ($)
Jul. 31, 2023
INR (₨)
Dec. 31, 2022
USD ($)
2022 INR Term Loan                  
Debt Instrument [Line Items]                  
Proceeds from issuance of debt       $ 284 ₨ 22,600        
Short-term debt         ₨ 22,700 $ 0 $ 285   $ 275
Stated interest rate           8.64%      
Effective interest rate           9.09%      
April 2023 INR Term Loan                  
Debt Instrument [Line Items]                  
Proceeds from issuance of debt $ 61 ₨ 4,960              
Short-term debt | ₨   ₨ 4,970              
Stated interest rate   9.48%              
Effective interest rate   9.705%              
2023 INR Term Loan                  
Debt Instrument [Line Items]                  
Short-term debt           $ 338 $ 342 ₨ 28,100 0
Stated interest rate           9.43%      
Effective interest rate           9.78%      
Senior Notes | March 2028 Notes                  
Debt Instrument [Line Items]                  
Long-term debt, gross     $ 750     $ 750     0
Stated interest rate           4.875%      
Effective interest rate           5.003%      
Senior Notes | March 2033 Notes                  
Debt Instrument [Line Items]                  
Long-term debt, gross     750     $ 750     $ 0
Stated interest rate           4.85%      
Effective interest rate           4.923%      
Senior Notes | Notes Issued 2023, USD                  
Debt Instrument [Line Items]                  
Proceeds from issuance of debt     $ 1,489