Summary of Changes in Accumulated Other Comprehensive Income (Loss) by Component (Parenthetical) (Detail) - USD ($) $ in Millions |
3 Months Ended | |
|---|---|---|
Sep. 30, 2021 |
Sep. 30, 2020 |
|
| Derivatives | ||
| Accumulated Other Comprehensive Income (Loss) [Line Items] | ||
| Unrealized gains (losses), tax | $ (3) | $ 5 |
| Net change related to other comprehensive income (loss), tax | 0 | 1 |
| Investments | ||
| Accumulated Other Comprehensive Income (Loss) [Line Items] | ||
| Unrealized gains (losses), tax | (110) | (50) |
| Net change related to other comprehensive income (loss), tax | (112) | (54) |
| Translation adjustments and other | ||
| Accumulated Other Comprehensive Income (Loss) [Line Items] | ||
| Net change related to other comprehensive income (loss), tax | $ 0 | $ (9) |