Noncontrolling Interests (Tables)

12 Months Ended

Dec. 31, 2011

Noncontrolling Interests [Abstract]

Activity for equity attributable to noncontrolling interests

	2011			2010			2009
Balance at January 1	$	730		$	647		$	469
Net income		113			112			80
Distributions to noncontrolling interests		(71	)		(72	)		(71	)
Other changes, net		27			43			169
Balance at December 31	$	799		$	730		$	647