Operating Expenses - Components of Operating Expenses (Detail) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Operating Expenses 1 [abstract]    
Salaries, commissions and allowances $ 2,478 $ 2,269
Share-based payments 76 64
Post-employment benefits 144 135
Total staff costs 2,698 2,468
Goods and services 1,306 1,158
Content 276 274
Telecommunications 50 54
Facilities 48 55
Fair value adjustments (8) (10)
Total operating expenses $ 4,370 $ 3,999