($ in millions)
At December 31:

2019

2018

Income tax reserves

​

$

5,118

​

$

4,195

Excess 401(k) Plus Plan

​

​

1,521

​

​

1,380

Disability benefits

​

​

478

​

​

507

Derivative liabilities

​

​

506

​

​

206

Workforce reductions

​

​

725

​

​

736

Deferred taxes*

​

​

5,230

​

​

3,696

Other taxes payable

​

​

42

​

​

40

Environmental accruals

​

​

254

​

​

244

Warranty accruals

​

​

45

​

​

76

Asset retirement obligations

​

​

94

​

​

111

Acquisition related

​

​

9

​

​

13

Divestiture related

​

​

65

​

​

173

Other

​

​

439

​

​

796

Total

​

$

14,526

​

$

12,174