Financing arrangements (Tables)

6 Months Ended

Jun. 30, 2011

Financing arrangements [Abstract]

Carrying values and the fixed contractual coupon rates of borrowing under various financing arrangements

	June 30,			December 31,
	2011			2010
0.125% convertible notes due 2011 (2011 Convertible Notes)	$	—		$	2,488
0.375% convertible notes due 2013 (2013 Convertible Notes)		2,279			2,213
5.65% notes due 2042 (2042 Notes)		1,244			—
5.85% notes due 2017 (2017 Notes)		1,099			1,099
4.85% notes due 2014 (2014 Notes)		1,000			1,000
5.70% notes due 2019 (2019 Notes)		998			998
4.10% notes due 2021 (2021 Notes)		997			—
6.40% notes due 2039 (2039 Notes)		996			996
6.375% notes due 2037 (2037 Notes)		899			899
3.45% notes due October 2020 (October 2020 Notes)		897			897
2.30% notes due 2016 (2016 Notes)		748			—
5.75% notes due 2040 (2040 Notes)		697			696
4.95% notes due 2041 (2041 Notes)		595			595
6.15% notes due 2018 (2018 Notes)		499			499
6.90% notes due 2038 (2038 Notes)		499			499
4.50% notes due March 2020 (March 2020 Notes)		300			300
Other notes including our zero coupon convertible notes		183			183
Total borrowings		13,930			13,362
Less current portion		(83	)		(2,488	)
Total non-current debt	$	13,847		$	10,874