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Supplementary Information | 12 Months Ended
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Dec. 31, 2021
Segment Reporting [Abstract] |
Supplementary Information | 17. Supplementary Information Cash paid for interest and income taxes was as follows:
(Stated in millions) |
| 2021 |  |  | 2020 |  |  | 2019 |
Interest | $ | 560 |  |  | $ | 598 |  |  | $ | 558 |
Income tax | $ | 591 |  |  | $ | 582 |  |  | $ | 739 |
Interest and other income includes the following:
(Stated in millions) |
| 2021 |  |  | 2020 |  |  | 2019 |
Earnings of equity method investments | $ | 40 |  |  | $ | 91 |  |  | $ | 45 |
Interest income |  | 33 |  |  |  | 33 |  |  |  | 41 |
Unrealized gain on marketable securities (see Note 3) |  | 47 |  |  |  | 39 |  |  |  | - |
Gain on sale of Liberty shares (see Note 3) |  | 28 |  |  |  | - |  |  |  | - |
| $ | 148 |  |  | $ | 163 |  |  | $ | 86 |
The components of depreciation and amortization expense are as follows:
(Stated in millions) |
| 2021 |  |  | 2020 |  |  | 2019 |
Depreciation of fixed assets | $ | 1,402 |  |  | $ | 1,625 |  |  | $ | 1,976 |
Amortization of APS investments |  | 305 |  |  |  | 396 |  |  |  | 731 |
Amortization of intangible assets |  | 302 |  |  |  | 371 |  |  |  | 618 |
Amortization of multiclient seismic data |  | 111 |  |  |  | 174 |  |  |  | 264 |
| $ | 2,120 |  |  | $ | 2,566 |  |  | $ | 3,589 |
The change in Allowance for doubtful accounts is as follows:
(Stated in millions) |
| 2021 |  |  | 2020 |  |  | 2019 |
Balance at beginning of year | $ | 301 |  |  | $ | 255 |  |  | $ | 249 |
Additions |  | 47 |  |  |  | 58 |  |  |  | 5 |
Amounts written off |  | (29 | ) |  |  | (12 | ) |  |  | 1 |
Balance at end of year | $ | 319 |  |  | $ | 301 |  |  | $ | 255 |
Revenue in excess of billings related to contracts where revenue is recognized over time was $0.2 billion at both December 31, 2021 and 2020. Such amounts are included within Receivables less allowance for doubtful accounts in the Consolidated Balance Sheet. Other Assets consist of the following:
(Stated in millions) |
| 2021 |  |  | 2020 |
Investments in APS projects | $ | 1,786 |  |  | $ | 1,713 |
Pension and other postretirement |  | 1,034 |  |  |  | 360 |
Operating lease assets |  | 553 |  |  |  | 710 |
Multiclient seismic data |  | 154 |  |  |  | 317 |
Fair value of hedge contracts |  | 66 |  |  |  | 427 |
Other |  | 590 |  |  |  | 666 |
| $ | 4,183 |  |  | $ | 4,193 |
Accounts payable and accrued liabilities consist of the following:
(Stated in millions) |
| 2021 |  |  | 2020 |
Trade | $ | 3,205 |  |  | $ | 2,937 |
Payroll, vacation and employee benefits |  | 1,377 |  |  |  | 1,524 |
Billings and cash collections in excess of revenue |  | 1,088 |  |  |  | 941 |
Other |  | 2,712 |  |  |  | 3,040 |
| $ | 8,382 |  |  | $ | 8,442 |

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