Discontinued Operations - Schedule of Major Classes of Assets and Liabilities Classified as Held for Sale in Balance Sheets (Parenthetical) (Detail) $ in Millions	Dec. 31, 2020 USD ($)
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Indefinite-lived intangible assets	$ 290
Definite-lived intangible assets	264
Intangible assets, net	554
Trade Names [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Intangible assets, net	248
Catalog Rights [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Intangible assets, net	$ 42