Employee Benefits Plan - Net Defined Benefit Plan Obligations (Detail) - USD ($)
$ in Millions |
12 Months Ended |
Dec. 31, 2021 |
Dec. 31, 2020 |
| Disclosure of net defined benefit liability (asset) [Line Items] |
|
|
| Beginning of period |
$ (470)
|
$ (629)
|
| Plan expense recognized in income statement: |
|
|
| Plan income (expense) recognized in income statement |
(66)
|
40
|
| Actuarial gains (losses) |
228
|
78
|
| Exchange differences |
0
|
7
|
| Contributions paid |
41
|
34
|
| Other |
0
|
|
| End of period |
(267)
|
(470)
|
| Net plan surpluses recognized in non-current assets |
239
|
128
|
| Net plan obligations recognized in non-current liabilities |
(506)
|
(598)
|
| Defined Benefit Plan [Member] |
|
|
| Disclosure of net defined benefit liability (asset) [Line Items] |
|
|
| Beginning of period |
(372)
|
(510)
|
| Plan expense recognized in income statement: |
|
|
| Plan income (expense) recognized in income statement |
(60)
|
43
|
| Actuarial gains (losses) |
230
|
60
|
| Exchange differences |
(1)
|
5
|
| Contributions paid |
32
|
28
|
| Other |
0
|
2
|
| End of period |
(171)
|
(372)
|
| Other Post Employment Benefits [Member] |
|
|
| Disclosure of net defined benefit liability (asset) [Line Items] |
|
|
| Beginning of period |
(98)
|
(119)
|
| Plan expense recognized in income statement: |
|
|
| Plan income (expense) recognized in income statement |
(6)
|
(3)
|
| Actuarial gains (losses) |
(2)
|
18
|
| Exchange differences |
1
|
2
|
| Contributions paid |
9
|
6
|
| Other |
0
|
(2)
|
| End of period |
$ (96)
|
$ (98)
|