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Goodwill And Other Acquired Intangible Assets - Estimated Future Amortization Expense for Acquired Intangible Assets Subject to Amortization (Detail)
$ in Millions
Jun. 30, 2021
USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]  
2021 (After June 30,) $ 63
2022 133
2023 129
2024 125
2025 121
Thereafter 1,213
Total estimated future amortization $ 1,784