Schedule II Valuation and Qualifying Accounts

12 Months Ended

Dec. 31, 2018

SEC Schedule, 12-09, 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, 2018, 2017 and 2016



Year ended December 31 (in millions)	Balance at Beginning of Year			Additions Charged to Costs and Expenses			Deductions from Reserves			Balance at End of Year
2018
Allowance for doubtful accounts	$	288		$	616		$	552		$	352
Valuation allowance on deferred tax assets	377			367			112			632
2017
Allowance for doubtful accounts	$	250		$	554		$	516		$	288
Valuation allowance on deferred tax assets	266			111			—			377
2016
Allowance for doubtful accounts	$	226		$	558		$	534		$	250
Valuation allowance on deferred tax assets	342			23			99			266

NBCUniversal Media LLC [Member]

SEC Schedule, 12-09, 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, 2018, 2017 and 2016



Year ended December 31 (in millions)	Balance at Beginning of Year			Additions Charged to Costs and Expenses			Deductions from Reserves			Balance at End of Year
2018
Allowance for doubtful accounts	$	88		$	32		$	21		$	99
Valuation allowance on deferred tax assets	87			13			27			73
2017
Allowance for doubtful accounts	$	84		$	23		$	19		$	88
Valuation allowance on deferred tax assets	72			15			—			87
2016
Allowance for doubtful accounts	$	69		$	26		$	11		$	84
Valuation allowance on deferred tax assets	71			23			22			72