Amount of commitment and contingency expiration per period

Total

Less than 1 year

1 to 3 years

3 to 5 years

5 years and thereafter

Performance bonds and guarantees

$

215

$

41

$

77

$

3

$

94

Stand-by letters of credit ⁽¹⁾

69

43

17

9

Subtotal of commitment expirations per period

$

284

$

84

$

94

$

3

$

103

Purchase obligations ⁽²⁾

$

994

$

232

$

219

$

111

$

432

Capital expenditure obligations ⁽³⁾

357

Debentures ⁽⁴⁾

6,315

227

87

6,001

Finance leases and financing obligations

729

55

207

115

352

Interest on debentures ⁽⁵⁾

8,306

265

523

519

6,999

Imputed interest on finance leases and financing obligations

271

32

53

39

147

Operating lease obligations

1,026

103

207

163

553

Uncertain tax positions ⁽⁶⁾

80

9

12

51

8

Subtotal of contractual obligation payments due by period

$

18,078

$

1,053

$

1,448

$

1,085

$

14,492

Total commitments and contingencies

$

18,362

$

1,137

$

1,542

$

1,088

$

14,595