Accumulated Other Comprehensive Income (Loss) - Components of Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Revenue	$ 6,090	$ 8,479	$ 8,453
Selling, general, and administrative	(968)	(1,303)	(1,233)
Other income (expense), net	(17)	(90)	(99)
Tax effect	242	369	(63)
Net loss attributable to Company	(2,542)	(6,095)	(31)
Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Revenue	17	1	2
Cost of revenue	6	14	(6)
Selling, general, and administrative	(1)	(1)	(1)
Other income (expense), net			6
Tax effect	(4)	(3)	2
Net loss attributable to Company	18	11	3
Currency Translation Adjustments [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Other income (expense), net			6
Net loss attributable to Company			6
Derivative Financial Instruments, Net of Tax [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Revenue	17	1	2
Cost of revenue	6	14	(6)
Tax effect	(4)	(3)	2
Net loss attributable to Company	19	12	(2)
Defined Benefit Plans, Net of Tax [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Selling, general, and administrative	(1)	(1)	(1)
Net loss attributable to Company	$ (1)	$ (1)	$ (1)