Schedule II Valuation and Qualifying Accounts

12 Months Ended

Dec. 31, 2016

Valuation and Qualifying Accounts Disclosure [Line Items]

Schedule II - Valuation and Qualifying Accounts

Comcast Corporation and Subsidiaries

Schedule II – Valuation and Qualifying Accounts

Year ended December 31, 2016, 2015 and 2014



Year Ended December 31 (in millions)	Balance at Beginning of Year			Additions Charged to Costs and Expenses(a)			Deductions from Reserves(a)			Balance at End of Year
2016
Allowance for doubtful accounts	$	226		$	86		$	62		$	250
Allowance for returns and customer incentives	473			1,041			1,097			417
Valuation allowance on deferred tax assets	342			23			99			266
2015
Allowance for doubtful accounts	$	205		$	166		$	145		$	226
Allowance for returns and customer incentives	359			1,236			1,122			473
Valuation allowance on deferred tax assets	375			4			37			342
2014
Allowance for doubtful accounts	$	221		$	162		$	178		$	205
Allowance for returns and customer incentives	375			932			948			359
Valuation allowance on deferred tax assets	405			33			63			375

NBCUniversal Media LLC [Member]

Valuation and Qualifying Accounts Disclosure [Line Items]

Schedule II - Valuation and Qualifying Accounts

NBCUniversal Media, LLC

Schedule II– Valuation and Qualifying Accounts

Year ended December 31, 2016, 2015 and 2014



Year Ended December 31 (in millions)	Balance at Beginning of Year			Additions Charged to Costs and Expenses(a)			Deductions from Reserves(a)			Balance at End of Year
2016
Allowance for doubtful accounts	$	69		$	26		$	11		$	84
Allowance for returns and customer incentives	469			1,040			1,096			413
Valuation allowance on deferred tax assets	71			23			22			72
2015
Allowance for doubtful accounts	$	60		$	27		$	18		$	69
Allowance for returns and customer incentives	356			1,233			1,120			469
Valuation allowance on deferred tax assets	87			4			20			71
2014
Allowance for doubtful accounts	$	65		$	11		$	16		$	60
Allowance for returns and customer incentives	372			930			946			356
Valuation allowance on deferred tax assets	60			33			6			87


(a)	Additions and deductions related to allowance for returns and customer incentives include amounts for distribution on behalf of third parties.