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Fair Value - Liabilities Measured on Recurring Basis (Detail) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2021
Dec. 31, 2020
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Amounts reclassified into equity as a result of the expiration of a put arrangement $ 110 $ 135    
Notes payable, payment period   3 years    
Redeemable Noncontrolling Interests | Level 3        
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Beginning of period (302) $ (310) $ (261) $ (305)
Acquisitions (13) 0 (58) 0
Net loss (income) 3 (4) 4 (8)
Redemption of noncontrolling interests 0 135 0 135
Distributions 0 5 3 11
Accretion and other(c) 140 (28) 140 (35)
End of period $ (172) $ (202) $ (172) $ (202)