Debt (Tables)

12 Months Ended

Dec. 31, 2011

Debt [Abstract]

Schedule Of Long-Term Debt

	December 31,
	2011		2010
Current portion of long-term debt	$	27	$	57
Long-term debt
Debentures, 6.75%, due 2013	$	100	$	100
Debentures, 5.90%, due 2014		100		100
Debentures, 6.20%, due 2016		75		78
Debentures, 8.875%, due 2016		81		82
Debentures, 6.625%, due 2019		250		250
Debentures, 4.25%, due 2020		298		297
Debentures, 8.875%, due 2021		87		89
Medium-term notes, average rate 7.66%, due through 2023		45		45
Debentures, 7.00%, due 2024		99		99
Debentures, 6.85%, due 2029		175		176
Debentures, callable, 7.25%, due 2036		249		249
Debentures, 5.75%, due 2040		397		397
Other, average rate 5.25%, due through 2037		435		357
Total long-term debt		2,391		2,319
Less current portion of long-term debt		27		57
Long-term debt	$	2,364	$	2,262

Schedule Of Debt Maturities By Years

2012	2013	2014	2015	2016	Thereafter
$27	$130	$192	$37	$172	$1,795