Indebtedness - (Tables)

12 Months Ended

Dec. 31, 2015

Debt Disclosure [Abstract]

Schedule of Debt - Net of Unamortized Discount and Debt Issuance Cost

Total debt consisted of the following at December 31, net of unamortized discount and debt issuance cost:

	2015		2014
6.0% Notes due June 2018	$	255	$	258
7.5% Senior Notes due November 2018	747		746
3.2% Senior Notes due August 2021	746		745
8.55% Debentures due June 2024	149		148
6.875% Notes due January 2029	394		394
5.125% Notes due September 2040	1,482		1,481
Other debt	268		361
Total debt	4,041		4,133
Less: short-term debt and current portion of long-term debt	151		220
Total long-term debt	$	3,890	$	3,913