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Leases - Components of Lease Expense (Detail) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Operating lease cost:      
Fixed payments and variable payments that depend on an index or rate $ 135 $ 148 $ 166
Variable lease payments not included in the lease liability 4 4 6
Short-term lease cost 2 3 6
Total operating lease cost $ 141 $ 155 $ 178