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DERIVATIVE FINANCIAL INSTRUMENTS - Cash Flow Hedges, Fair Value Hedges, Credit Risk Narrative (Details)
6 Months Ended
Dec. 31, 2023
USD ($)
agency
Jun. 30, 2023
USD ($)
Derivative instruments    
Fair value hedge, gain to be reclassified within 12 months $ 14,000,000  
Derivatives Not Designated as Hedging Instruments:    
Derivative instruments    
Notional amount $ 3,184,000,000  
Derivative    
Derivative instruments    
Minimum number of nationally recognized rating agencies | agency 2  
Maximum exposure to credit risk in the event of non performance by counterparties, gross fair value of contracts in asset positions $ 55,000,000  
Cross-currency swap contracts    
Derivative instruments    
Accumulated net gain (loss) on derivative instruments in AOCI, before tax (6,000,000) $ (20,000,000)
Cash flow hedges    
Derivative instruments    
Amount expected to be reclassified from AOCI into earnings, net of tax, within the next twelve months 14,000,000  
Accumulated net gain (loss) on derivative instruments in AOCI, before tax 51,000,000 $ 79,000,000
Cash flow hedges | Foreign currency forward contracts    
Derivative instruments    
Notional amount 1,752,000,000  
Derivatives in fair value hedging relationships | Interest rate swap contracts | 2.600% Senior Notes, due April 15, 2030 ("2030 Senior Notes)"    
Derivative instruments    
Notional amount $ 700,000,000  
Derivatives in fair value hedging relationships | Interest rate swap contracts | 2.600% Senior Notes, due April 15, 2030 ("2030 Senior Notes)" | SOFR    
Derivative instruments    
Number of months for SOFR calculation 3 months  
Derivatives in fair value hedging relationships | Interest rate swap contracts | 1.950% Senior Notes, due March15, 2031 ("2031 Senior Notes)"    
Derivative instruments    
Notional amount $ 300,000,000  
Derivatives in fair value hedging relationships | Interest rate swap contracts | 1.950% Senior Notes, due March15, 2031 ("2031 Senior Notes)" | SOFR    
Derivative instruments    
Number of months for SOFR calculation 3 months  
Derivatives in fair value hedging relationships | Cross-currency swap contracts    
Derivative instruments    
Notional amount $ 491,000,000  
Net investment hedges | Foreign currency forward contracts    
Derivative instruments    
Notional amount $ 408,000,000