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Additional Financial Information - Components of Accumulated Other Comprehensive Loss (Parenthetical) (Detail) - USD ($)
$ in Millions
1 Months Ended 12 Months Ended
Jul. 01, 2018
Jul. 31, 2018
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2017
Accumulated Other Comprehensive Income (Loss) [Line Items]          
Unrealized holding (losses) gains on securities, income tax (benefit) expense       $ 1 $ (10)
Derivatives, income tax expense     $ 1 2 0
Pension plans, income tax expense (benefit)     10 28 8
Foreign currency translation adjustments, fiscal year activity     (247) (123) 84
Share of other comprehensive (loss) income from equity affiliates, income tax expense (benefit)     0 5 2
Accounting Standards Update 2016-01 [Member]          
Accumulated Other Comprehensive Income (Loss) [Line Items]          
Adjustment to retained earnings $ 22 $ 22      
Noncontrolling Interests [Member]          
Accumulated Other Comprehensive Income (Loss) [Line Items]          
Foreign currency translation adjustments, fiscal year activity     $ (58) $ (42) $ 9