Debt (Tables)

12 Months Ended

Dec. 31, 2012

Debt [Abstract]

Schedule Of Long-Term Debt

	December 31,
	2012		2011
Current portion of long-term debt	$	76	$	27
Long-term debt
Debentures, 6.75%, due 2013	$	49	$	100
Debentures, 5.90%, due 2014				100
Debentures, 6.20%, due 2016				75
Debentures, 8.875%, due 2016		68		81
Debentures, 1.45%, due 2017		249
Debentures, 6.625%, due 2019		250		250
Debentures, 4.25%, due 2020		297		298
Debentures, 8.875%, due 2021		71		87
Medium-term notes, average rate 7.66%, due through 2023		45		45
Debentures, 7.00%, due 2024		99		99
Debentures, 6.85%, due 2029		173		175
Debentures, callable, 7.25%, due 2036		249		249
Debentures, 4.70%, due 2037		250
Debentures, 5.75%, due 2040		398		397
Debentures, 4.75%, due 2042		500
Other, average rate 6.00%, due through 2037		760		435
Total long-term debt		3,458		2,391
Less current portion of long-term debt		76		27
Long-term debt	$	3,382	$	2,364

Schedule Of Debt Maturities By Years

2013	2014	2015	2016	2017	Thereafter
$76	$297	$138	$156	$252	$2,511