Exhibit 12.1

	Nine Months Ended, September 30,		Year Ended December 31,
	2016		2015		2014		2013		2012		2011
Earnings
Earnings (loss) before income taxes		806	$	1,031	$	881	$	917	$	558	$	(28	)
Fixed charges		159		225		222		231		256		270
	$	965	$	1,256	$	1,103	$	1,148	$	814	$	242
Fixed charges
Portion of rents representative of the interest factor	$	41	$	60	$	57	$	54	$	57	$	57
Interest on indebtedness		114		160		159		172		193		204
Amortization of debt financing fees		4		5		6		5		6		9
	$	159	$	225	$	222	$	231	$	256	$	270
Ratio of earnings to fixed charges		6.1		5.6		5.0		5.0		3.2		0.9