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Fair Value Measurements (Details) - USD ($)
$ in Millions
Jun. 30, 2022
Jun. 30, 2021
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets held for sale $ 0 $ 1,101
Liabilities related to assets held for sale $ 0 96
Fair Value, Nonrecurring    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets held for sale   1,100
Liabilities related to assets held for sale   $ 96