Schedule II - Valuation and Qualifying Accounts

12 Months Ended

Dec. 31, 2019

SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]

Schedule II - Valuation and Qualifying Accounts [Text Block]

The Williams Companies, Inc.

Schedule II — Valuation and Qualifying Accounts

			Additions
	Beginning Balance		Charged (Credited) To Costs and Expenses			Other		Deductions		Ending Balance
	(Millions)
2019
Deferred tax asset valuation allowance (1)	$	320	$	(1	)	$	—	$	—	$	319
2018
Deferred tax asset valuation allowance (1)	224		96			—		—		320
2017
Deferred tax asset valuation allowance (1)	334		(110		)	—		—		224

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(1)    Deducted from related assets.