v3.26.1
Summary of Changes in Accumulated Other Comprehensive Income (Loss) by Component (Detail) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Mar. 31, 2026
Mar. 31, 2025
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Balance, beginning of period     $ 343,479  
Other comprehensive income (loss) $ (526) $ 783 119 $ 757
Balance, end of period 414,367 321,891 414,367 321,891
Derivatives        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Balance, beginning of period (14) 21 (8) (3)
Unrealized gains (losses), net of tax (27) 20 (43) (1)
Tax expense (benefit) included in provision for income taxes (7) 10 (9) (2)
Amounts reclassified from accumulated other comprehensive loss 27 (40) 37 5
Other comprehensive income (loss) 0 (20) (6) 4
Balance, end of period (14) 1 (14) 1
Derivatives | Other Income (Expense), Net        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Reclassification adjustments for (gains) losses included in other income (expense), net 34 (50) 46 7
Investments        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Balance, beginning of period (525) (1,945) (1,051) (2,625)
Unrealized gains (losses), net of tax (215) 445 310 1,110
Tax expense (benefit) included in provision for income taxes 6 (1) 6 (5)
Amounts reclassified from accumulated other comprehensive loss (24) 5 (23) 20
Other comprehensive income (loss) (239) 450 287 1,130
Balance, end of period (764) (1,495) (764) (1,495)
Investments | Other Income (Expense), Net        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Reclassification adjustments for (gains) losses included in other income (expense), net (30) 6 (29) 25
Translation adjustments and other        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Balance, beginning of period (2,163) (3,692) (2,288) (2,962)
Other comprehensive income (loss) (287) 353 (162) (377)
Balance, end of period (2,450) (3,339) (2,450) (3,339)
Accumulated other comprehensive loss        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Balance, beginning of period (2,702) (5,616) (3,347) (5,590)
Other comprehensive income (loss) (526) 783 119 757
Balance, end of period $ (3,228) $ (4,833) $ (3,228) $ (4,833)