Financing arrangements (Tables)

12 Months Ended

Dec. 31, 2012

Debt Disclosure [Abstract]

Carrying values and the fixed contractual coupon rates of long-term borrowings

The carrying values and the fixed contractual coupon rates of our long-term borrowings were as follows as of December 31, 2012 and 2011 (in millions):

	2012			2011
0.375% convertible notes due 2013 (0.375% 2013 Convertible Notes)	$	2,488		$	2,346
1.875% notes due 2014 (1.875% 2014 Notes)	1,000			1,000
4.85% notes due 2014 (4.85% 2014 Notes)	1,000			1,000
2.30% notes due 2016 (2.30% 2016 Notes)	749			748
2.50% notes due 2016 (2.50% 2016 Notes)	999			999
2.125% notes due 2017 (2.125% 2017 Notes)	1,248			—
5.85% notes due 2017 (5.85% 2017 Notes)	1,099			1,099
6.15% notes due 2018 (6.15% 2018 Notes)	499			499
4.375% euro denominated notes due 2018 (4.375% 2018 euro Notes)	723			714
5.70% notes due 2019 (5.70% 2019 Notes)	999			998
2.125% euro denominated notes due 2019 (2.125% 2019 euro Notes)	887			—
4.50% notes due 2020 (4.50% 2020 Notes)	300			300
3.45% notes due 2020 (3.45% 2020 Notes)	897			897
4.10% notes due 2021 (4.10% 2021 Notes)	998			998
3.875% notes due 2021 (3.875% 2021 Notes)	1,745			1,745
3.625% notes due 2022 (3.625% 2022 Notes)	747			—
5.50% pound sterling denominated notes due 2026 (5.50% 2026 pound sterling Notes)	763			739
4.00% pound sterling denominated notes due 2029 (4.00% 2029 pound sterling Notes)	1,117			—
6.375% notes due 2037 (6.375% 2037 Notes)	899			899
6.90% notes due 2038 (6.90% 2038 Notes)	499			499
6.40% notes due 2039 (6.40% 2039 Notes)	996			996
5.75% notes due 2040 (5.75% 2040 Notes)	697			697
4.95% notes due 2041 (4.95% 2041 Notes)	595			595
5.15% notes due 2041 (5.15% 2041 Notes)	2,232			2,232
5.65% notes due 2042 (5.65% 2042 Notes)	1,244			1,244
5.375% notes due 2043 (5.375% 2043 Notes)	1,000			—
Other, including our zero-coupon convertible notes	109			184
Total debt	26,529			21,428
Less current portion	(2,495		)	(84		)
Total noncurrent debt	$	24,034		$	21,344

Principal balance, unamortized discount and net carrying amounts of the liability and equity components of our 0.375% 2013 convertible notes

The principal balance, unamortized discount and net carrying amount of the liability and equity components of our 0.375% 2013 Convertible Notes were as follows as of December 31, 2012 and 2011 (in millions):

	Liability component						Equity component
0.375% 2013 Convertible Notes	Principal balance		Unamortized discount		Net carrying amount		Net carrying amount
December 31, 2012	$	2,500	$	12	$	2,488	$	829
December 31, 2011	$	2,500	$	154	$	2,346	$	829

Aggregate contractual maturities of long-term debt obligations

The aggregate contractual maturities of all long-term debt obligations due subsequent to December 31, 2012, are as follows (in millions):

Maturity date	Amount
2013(1)	$	2,507
2014	2,002
2015	—
2016	1,750
2017	2,350
Thereafter	18,017
Total	$	26,626

⁽¹⁾  This amount includes the$2.5 billion principal amount for our 0.375% 2013 Convertible Notes after full accretion of the debt discount.