Accrued Expenses - Components of Accrued Expenses (Detail) - USD ($) $ in Millions	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015	Dec. 31, 2014
Payables and Accruals [Abstract]
Salaries and benefits	$ 957	$ 1,189
Product warranties	151	172	$ 188	$ 207
Dividends payable (see Note 10)	239	234
Partner rebates	181	221
Restructuring, current (See Note 11)	250	333
Derivatives	85	82
Other	859	892
Accrued Liabilities, Current, Total	$ 2,722	$ 3,123