Exhibit 12.1

RATIO OF EARNINGS TO FIXED CHARGES

	First Quarter Ended March 30,		Year Ended December 31,
	2018		2017		2016		2015			2014			2013
	(In millions, except ratio of earnings to fixed charges)
Earnings:
Income from continuing operations before income taxes	$	216	$	871	$	804	$	639		$	87 1		$	9 08
Less: Net income from continuing operations attributable to noncontrolling interests		(5)		(16)		(14)		(15	)		(13	)		(9	)
Income from continuing operations before income taxes after noncontrolling interests	$	211	$	855	$	790	$	624		$	85 8		$	899
Add:
Interest expense		41		165		161		181			171			171
Amortization of debt expense		1		6		8		8			7			6
Interest component of rent expense		9		36		34		42			47			47
Earnings	$	262	$	1,062	$	993	$	855		$	1,084		$	1,195
Fixed charges:
Interest expense	$	41	$	165	$	161	$	181		$	171		$	171
Amortization of debt expense		1		6		8		8			7			6
Interest component of rent expense		9		36		34		42			47			47
Fixed charges	$	51	$	207	$	203	$	231		$	225		$	224
Ratio of earnings to fixed charges		5.1 x		5.1 x		4.9 x		3.7 x			4.8x			5. 0 x