Exhibit 12

CBS CORPORATION AND SUBSIDIARIES

COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES

(Tabular dollars in millions, except ratios)

	Six Months Ended						Twelve Months Ended
	June 30,						December 31,
	2017			2016			2016			2015			2014			2013			2012
Earnings from continuing operations before income taxes and equity in loss of investee companies	$	1,187		$	1,224		$	2,230		$	2,264		$	1,858		$	2,303		$	1,994
Add:
Distributions from investee companies	—			4			3			3			9			8			11
Interest expense, net of capitalized interest	220			200			411			392			363			375			401
1/3 of rental expense	28			27			56			58			57			55			55
Total earnings from continuing operations	$	1,435		$	1,455		$	2,700		$	2,717		$	2,287		$	2,741		$	2,461
Fixed charges:
Interest expense, net of capitalized interest	$	220		$	200		$	411		$	392		$	363		$	375		$	401
1/3 of rental expense	28			27			56			58			57			55			55
Total fixed charges	$	248		$	227		$	467		$	450		$	420		$	430		$	456
Ratio of earnings to fixed charges	5.8		x	6.4		x	5.8		x	6.0		x	5.4		x	6.4		x	5.4		x