v3.26.1
Summary of Changes in Accumulated Other Comprehensive Income (Loss) by Component (Parenthetical) (Detail) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Mar. 31, 2026
Mar. 31, 2025
Derivatives        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Unrealized gains (losses), net of tax $ (7) $ 5 $ (11) $ (1)
Net change related to other comprehensive income (loss), tax 0 (5) (2) 1
Investments        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Unrealized gains (losses), net of tax (58) 118 82 294
Net change related to other comprehensive income (loss), tax (64) 119 76 299
Translation adjustments and other        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Net change related to other comprehensive income (loss), tax $ 0 $ 0 $ 0 $ 0