Consolidated Statement of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Comprehensive income (loss):
Net income (loss)	$ 407	$ 322	$ 799	$ 757
Designated cash flow hedging activities:
Net unrealized gain (loss) from derivative instruments, net of taxes of ($1) and ($2) in 2022 and $7 and $9 in 2021	2	(17)	5	(26)
Reclassifications into earnings of net derivative instruments (gain) loss, net of taxes of $— and $— in 2022 and ($2) and ($2) in 2021	0	4	0	6
Pension and other postretirement benefits:
Amortization of actuarial (gain) loss and net actuarial loss from settlements included in net periodic benefit cost (credit), net of taxes of $— and ($1) in 2022 and ($1) and ($2) in 2021	3	3	5	6
Other comprehensive income (loss)	5	(10)	10	(14)
Comprehensive income (loss)	412	312	809	743
Less: Comprehensive income (loss) attributable to noncontrolling interests	7	18	19	27
Comprehensive income (loss) attributable to The Williams Companies, Inc.	$ 405	$ 294	$ 790	$ 716