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Intangible Assets - Additional Information (Detail)
$ in Millions
Jun. 30, 2020
USD ($)
Goodwill And Intangible Assets Disclosure [Abstract]  
Estimated amortization charged to income, remaining two quarters of 2020 $ 161
Estimated amortization charged to income, 2021 307
Estimated amortization charged to income, 2022 302
Estimated amortization charged to income, 2023 291
Estimated amortization charged to income, 2024 261
Estimated amortization charged to income, 2025 $ 254