Short-Term Debt (Tables)

12 Months Ended

Dec. 31, 2011

Short-Term Debt and Long-Term Debt [Abstract]

Short-Term Debt

	At December 31
	2011			2010
Commercial paper*	$	2,498		$	2,471
Notes payable to banks and others with originating terms of one year or less		40			43
Current maturities of long-term debt		17			33
Current maturities of long-term capital leases		54			81
Redeemable long-term obligations
Long-term debt		3,317			2,943
Capital leases		14			16
Subtotal		5,940			5,587
Reclassified to long-term debt		(5,600	)		(5,400	)
Total short-term debt	$	340		$	187

* Weighted-average interest rates at December 31, 2011 and 2010, were 0.04 percent and 0.16 percent, respectively.