|
Financing arrangements (Details) (USD $)
In Millions, unless otherwise specified |
Sep. 30, 2012
|
Dec. 31, 2011
|
|---|---|---|
| Carrying values of long-term borrowings | ||
| Other, including our zero-coupon convertible notes while outstanding | $ 116 | $ 184 |
| Total debt | 26,478 | 21,428 |
| Less current portion | (2,458) | (84) |
| Total noncurrent debt | 24,020 | 21,344 |
|
0.375% convertible notes due 2013 (0.375% 2013 Convertible Notes) [Member]
|
||
| Carrying values of long-term borrowings | ||
| Convertible notes, current | 2,452 | |
| Convertible notes | 2,346 | |
|
1.875% notes due 2014 (1.875% 2014 Notes) [Member]
|
||
| Carrying values of long-term borrowings | ||
| Total noncurrent debt | 1,000 | 1,000 |
|
4.85% notes due 2014 (4.85% 2014 Notes) [Member]
|
||
| Carrying values of long-term borrowings | ||
| Total noncurrent debt | 1,000 | 1,000 |
|
2.30% notes due 2016 (2.30% 2016 Notes) [Member]
|
||
| Carrying values of long-term borrowings | ||
| Total noncurrent debt | 749 | 748 |
|
2.50% notes due 2016 (2.50% 2016 Notes) [Member]
|
||
| Carrying values of long-term borrowings | ||
| Total noncurrent debt | 999 | 999 |
|
2.125% notes due 2017 (2.125% 2017 Notes) [Member]
|
||
| Carrying values of long-term borrowings | ||
| Total noncurrent debt | 1,248 | |
|
5.85% notes due 2017 (5.85% 2017 Notes) [Member]
|
||
| Carrying values of long-term borrowings | ||
| Total noncurrent debt | 1,099 | 1,099 |
|
6.15% notes due 2018 (6.15% 2018 Notes) [Member]
|
||
| Carrying values of long-term borrowings | ||
| Total noncurrent debt | 499 | 499 |
|
4.375% euro denominated notes due 2018 (4.375% 2018 euro Notes) [Member]
|
||
| Carrying values of long-term borrowings | ||
| Total noncurrent debt | 710 | 714 |
|
5.70% notes due 2019 (5.70% 2019 Notes) [Member]
|
||
| Carrying values of long-term borrowings | ||
| Total noncurrent debt | 999 | 998 |
|
2.125% euro denominated notes due 2019 (2.125% 2019 euro Notes) [Member]
|
||
| Carrying values of long-term borrowings | ||
| Total noncurrent debt | 871 | |
|
4.50% notes due 2020 (4.50% 2020 Notes) [Member]
|
||
| Carrying values of long-term borrowings | ||
| Total noncurrent debt | 300 | 300 |
|
3.45% notes due 2020 (3.45% 2020 Notes) [Member]
|
||
| Carrying values of long-term borrowings | ||
| Total noncurrent debt | 897 | 897 |
|
4.10% notes due 2021 (4.10% 2021 Notes) [Member]
|
||
| Carrying values of long-term borrowings | ||
| Total noncurrent debt | 998 | 998 |
|
3.875% notes due 2021 (3.875% 2021 Notes) [Member]
|
||
| Carrying values of long-term borrowings | ||
| Total noncurrent debt | 1,745 | 1,745 |
|
3.625% notes due 2022 (3.625% 2022 Notes) [Member]
|
||
| Carrying values of long-term borrowings | ||
| Total noncurrent debt | 747 | |
|
5.50% pound sterling denominated notes due 2026 (5.50% 2026 pound sterling Notes) [Member]
|
||
| Carrying values of long-term borrowings | ||
| Total noncurrent debt | 766 | 739 |
|
4.00% pound sterling denominated notes due 2029 (4.00% 2029 pound sterling Notes) [Member]
|
||
| Carrying values of long-term borrowings | ||
| Total noncurrent debt | 1,121 | |
|
6.375% notes due 2037 (6.375% 2037 Notes) [Member]
|
||
| Carrying values of long-term borrowings | ||
| Total noncurrent debt | 899 | 899 |
|
6.90% notes due 2038 (6.90% 2038 Notes) [Member]
|
||
| Carrying values of long-term borrowings | ||
| Total noncurrent debt | 499 | 499 |
|
6.40% notes due 2039 (6.40% 2039 Notes) [Member]
|
||
| Carrying values of long-term borrowings | ||
| Total noncurrent debt | 996 | 996 |
|
5.75% notes due 2040 (5.75% 2040 Notes) [Member]
|
||
| Carrying values of long-term borrowings | ||
| Total noncurrent debt | 697 | 697 |
|
4.95% notes due 2041 (4.95% 2041 Notes) [Member]
|
||
| Carrying values of long-term borrowings | ||
| Total noncurrent debt | 595 | 595 |
|
5.15% notes due 2041 (5.15% 2041 Notes) [Member]
|
||
| Carrying values of long-term borrowings | ||
| Total noncurrent debt | 2,232 | 2,232 |
|
5.65% notes due 2042 (5.65% 2042 Notes) [Member]
|
||
| Carrying values of long-term borrowings | ||
| Total noncurrent debt | 1,244 | 1,244 |
|
5.375% notes due 2043 (5.375% 2043 Notes) [Member]
|
||
| Carrying values of long-term borrowings | ||
| Total noncurrent debt | $ 1,000 |