($ in millions)

​

​

​

​

At December 31:

2021

2020

Income tax reserves

​

$

6,179

​

$

5,274

Excess 401(k) Plus Plan

​

​

1,686

​

​

1,635

Disability benefits

​

​

359

​

​

385

Derivative liabilities

​

​

103

​

​

40

Workforce reductions

​

​

752

​

​

886

Deferred taxes

​

​

3,956

​

​

4,958

Other taxes payable

​

​

72

​

​

253

Environmental accruals

​

​

224

​

​

246

Warranty accruals

​

​

29

​

​

33

Asset retirement obligations

​

​

92

​

​

84

Acquisition related

​

​

218

​

​

60

Divestiture related

​

​

47

​

​

63

Other

​

​

278

​

​

263

Total

​

$

13,996

​

$

14,180

​

​

​

​

​

​

​