Restructuring - Summary of Amounts Recorded for Restructuring Plans (Detail) - USD ($) $ in Millions |
12 Months Ended | |
---|---|---|
Dec. 31, 2017 |
Dec. 31, 2016 |
|
Restructuring Cost and Reserve [Line Items] | ||
Restructuring reserves, beginning balance | $ 102 | $ 14 |
Expense, net of reversals | 63 | 63 |
Acquisitions | 80 | |
Payments | (81) | (50) |
Foreign currency translation and other | (5) | |
Restructuring reserves, ending balance | 84 | 102 |
Severance and Related Costs [Member] | ||
Restructuring Cost and Reserve [Line Items] | ||
Restructuring reserves, beginning balance | 99 | 12 |
Expense, net of reversals | 59 | 60 |
Acquisitions | 80 | |
Payments | (77) | (48) |
Foreign currency translation and other | (1) | (5) |
Restructuring reserves, ending balance | 80 | 99 |
Exit Costs [Member] | ||
Restructuring Cost and Reserve [Line Items] | ||
Restructuring reserves, beginning balance | 3 | 2 |
Expense, net of reversals | 4 | 3 |
Payments | (4) | (2) |
Foreign currency translation and other | 1 | |
Restructuring reserves, ending balance | $ 4 | $ 3 |