Debt (Tables)

12 Months Ended

Dec. 31, 2011

Schedule of Long-term Debt Instruments

In May 2011, we issued $3.0 billion of unsecured senior notes in three tranches as described in the table below (collectively, the Notes) (in millions):

	Outstanding Balance as of December 31, 2011
1.25% Notes due on May 19, 2014	$	1,000
2.125% Notes due on May 19, 2016		1,000
3.625% Notes due on May 19, 2021		1,000
Unamortized discount for the Notes above		(14	)
Total	$	2,986

Schedule of Maturities of Long-term Debt

At December 31, 2011, future principal payments for the Notes were as follows (in millions):

Years ended
2012	$	0
2013		0
2014		1,000
2015		0
2016		1,000
Thereafter		1,000
Total	$	3,000