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, 2022	Dec. 31, 2021	Dec. 31, 2020
Revenues
Concentration Risk [Line Items]
Concentration percentage	27.00%	31.00%	29.00%
Operating Income
Concentration Risk [Line Items]
Concentration percentage	19.00%	22.00%	29.00%
Identifiable assets at year end
Concentration Risk [Line Items]
Concentration percentage	10.00%	17.00%	14.00%
Equity
Concentration Risk [Line Items]
Concentration percentage	7.00%	4.00%	6.00%