Other Long-Term Liabilities (Detail) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Other Liabilities Noncurrent
Pension and other employee benefits	$ 1,492	$ 2,041
Deferred tax liabilities	93	195
Litigation reserves	19	24
Business optimization reserves	11	18
Contingent payment liabilities	15	20
All other	113	127
Other long-term liabilities	$ 1,743	$ 2,425