Business Segment Information - People's Republic of China, including Hong Kong - Geographic Concentration Risk (Detail) - Peoples Republic Of China Including Hong Kong - Geographic Concentration Risk		12 Months Ended
		Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Revenues
Concentration Risk [Line Items]
Concentration percentage	[1]	31.00%	29.00%	25.00%
Operating Income
Concentration Risk [Line Items]
Concentration percentage		22.00%	29.00%	27.00%
Identifiable assets at year end
Concentration Risk [Line Items]
Concentration percentage		17.00%	14.00%	12.00%
Equity
Concentration Risk [Line Items]
Concentration percentage		4.00%	6.00%	9.00%

[1] See Note 11 – Correction of Immaterial Errors