Consolidated Statement of Comprehensive Income (Loss) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Comprehensive income (loss):
Net income (loss)	$ 2,117	$ 1,562	$ 198
Designated cash flow hedging activities:
Net unrealized gain (loss) from derivative instruments, net of taxes of $1, $14, and $— in 2022, 2021, and 2020, respectively	(3)	(40)	(2)
Reclassifications into earnings of net derivative instruments (gain) loss, net of taxes of $—, ($14), and $— in 2022, 2021, and 2020, respectively	0	41	1
Pension and other postretirement benefits:
Net actuarial gain (loss) arising during the year, net of taxes of $1, ($18), and ($27) in 2022, 2021, and 2020, respectively	1	51	81
Amortization of actuarial (gain) loss and net actuarial loss from settlements included in net periodic benefit cost (credit), net of taxes of ($4), ($4), and ($7) in 2022, 2021, and 2020, respectively	11	11	23
Other comprehensive income (loss)	9	63	103
Comprehensive income (loss)	2,126	1,625	301
Less: Comprehensive income (loss) attributable to noncontrolling interests	68	45	(13)
Comprehensive income (loss) attributable to The Williams Companies, Inc.	$ 2,058	$ 1,580	$ 314