Revenues (Tables)

6 Months Ended

Jun. 30, 2023

Disaggregation of Revenue [Line Items]

Disaggregation of Revenue

Disaggregation of revenues from contracts with customers, which correlates to revenues for each reportable segment, was as follows (in millions):

	Alliant Energy		IPL		WPL
Three Months Ended June 30	2023	2022	2023	2022	2023	2022
Electric Utility:
Retail - residential	$284	$289	$151	$158	$133	$131
Retail - commercial	201	196	129	127	72	69
Retail - industrial	245	244	130	136	115	108
Wholesale	49	54	14	16	35	38
Bulk power and other	20	29	7	5	13	24
Total Electric Utility	799	812	431	442	368	370
Gas Utility:
Retail - residential	42	51	24	28	18	23
Retail - commercial	22	27	12	14	10	13
Retail - industrial	3	3	2	2	1	1
Transportation/other	10	13	6	8	4	5
Total Gas Utility	77	94	44	52	33	42
Other Utility:
Steam	11	11	11	11	—	—
Other utility	2	2	1	1	1	1
Total Other Utility	13	13	12	12	1	1
Non-Utility and Other:
Travero and other	23	24	—	—	—	—
Total Non-Utility and Other	23	24	—	—	—	—
Total revenues	$912	$943	$487	$506	$402	$413

	Alliant Energy		IPL		WPL
Six Months Ended June 30	2023	2022	2023	2022	2023	2022
Electric Utility:
Retail - residential	$569	$581	$294	$308	$275	$273
Retail - commercial	385	386	241	246	144	140
Retail - industrial	460	453	236	246	224	207
Wholesale	95	101	26	31	69	70
Bulk power and other	58	65	22	12	36	53
Total Electric Utility	1,567	1,586	819	843	748	743
Gas Utility:
Retail - residential	210	210	117	113	93	97
Retail - commercial	110	109	56	54	54	55
Retail - industrial	9	11	6	7	3	4
Transportation/other	24	26	15	17	9	9
Total Gas Utility	353	356	194	191	159	165
Other Utility:
Steam	22	20	22	20	—	—
Other utility	3	3	2	2	1	1
Total Other Utility	25	23	24	22	1	1
Non-Utility and Other:
Travero and other	45	47	—	—	—	—
Total Non-Utility and Other	45	47	—	—	—	—
Total revenues	$1,990	$2,012	$1,037	$1,056	$908	$909

IPL [Member]

Disaggregation of Revenue [Line Items]

Disaggregation of Revenue

Disaggregation of revenues from contracts with customers, which correlates to revenues for each reportable segment, was as follows (in millions):

	Alliant Energy		IPL		WPL
Three Months Ended June 30	2023	2022	2023	2022	2023	2022
Electric Utility:
Retail - residential	$284	$289	$151	$158	$133	$131
Retail - commercial	201	196	129	127	72	69
Retail - industrial	245	244	130	136	115	108
Wholesale	49	54	14	16	35	38
Bulk power and other	20	29	7	5	13	24
Total Electric Utility	799	812	431	442	368	370
Gas Utility:
Retail - residential	42	51	24	28	18	23
Retail - commercial	22	27	12	14	10	13
Retail - industrial	3	3	2	2	1	1
Transportation/other	10	13	6	8	4	5
Total Gas Utility	77	94	44	52	33	42
Other Utility:
Steam	11	11	11	11	—	—
Other utility	2	2	1	1	1	1
Total Other Utility	13	13	12	12	1	1
Non-Utility and Other:
Travero and other	23	24	—	—	—	—
Total Non-Utility and Other	23	24	—	—	—	—
Total revenues	$912	$943	$487	$506	$402	$413

	Alliant Energy		IPL		WPL
Six Months Ended June 30	2023	2022	2023	2022	2023	2022
Electric Utility:
Retail - residential	$569	$581	$294	$308	$275	$273
Retail - commercial	385	386	241	246	144	140
Retail - industrial	460	453	236	246	224	207
Wholesale	95	101	26	31	69	70
Bulk power and other	58	65	22	12	36	53
Total Electric Utility	1,567	1,586	819	843	748	743
Gas Utility:
Retail - residential	210	210	117	113	93	97
Retail - commercial	110	109	56	54	54	55
Retail - industrial	9	11	6	7	3	4
Transportation/other	24	26	15	17	9	9
Total Gas Utility	353	356	194	191	159	165
Other Utility:
Steam	22	20	22	20	—	—
Other utility	3	3	2	2	1	1
Total Other Utility	25	23	24	22	1	1
Non-Utility and Other:
Travero and other	45	47	—	—	—	—
Total Non-Utility and Other	45	47	—	—	—	—
Total revenues	$1,990	$2,012	$1,037	$1,056	$908	$909

WPL [Member]

Disaggregation of Revenue [Line Items]

Disaggregation of Revenue

Disaggregation of revenues from contracts with customers, which correlates to revenues for each reportable segment, was as follows (in millions):

	Alliant Energy		IPL		WPL
Three Months Ended June 30	2023	2022	2023	2022	2023	2022
Electric Utility:
Retail - residential	$284	$289	$151	$158	$133	$131
Retail - commercial	201	196	129	127	72	69
Retail - industrial	245	244	130	136	115	108
Wholesale	49	54	14	16	35	38
Bulk power and other	20	29	7	5	13	24
Total Electric Utility	799	812	431	442	368	370
Gas Utility:
Retail - residential	42	51	24	28	18	23
Retail - commercial	22	27	12	14	10	13
Retail - industrial	3	3	2	2	1	1
Transportation/other	10	13	6	8	4	5
Total Gas Utility	77	94	44	52	33	42
Other Utility:
Steam	11	11	11	11	—	—
Other utility	2	2	1	1	1	1
Total Other Utility	13	13	12	12	1	1
Non-Utility and Other:
Travero and other	23	24	—	—	—	—
Total Non-Utility and Other	23	24	—	—	—	—
Total revenues	$912	$943	$487	$506	$402	$413

	Alliant Energy		IPL		WPL
Six Months Ended June 30	2023	2022	2023	2022	2023	2022
Electric Utility:
Retail - residential	$569	$581	$294	$308	$275	$273
Retail - commercial	385	386	241	246	144	140
Retail - industrial	460	453	236	246	224	207
Wholesale	95	101	26	31	69	70
Bulk power and other	58	65	22	12	36	53
Total Electric Utility	1,567	1,586	819	843	748	743
Gas Utility:
Retail - residential	210	210	117	113	93	97
Retail - commercial	110	109	56	54	54	55
Retail - industrial	9	11	6	7	3	4
Transportation/other	24	26	15	17	9	9
Total Gas Utility	353	356	194	191	159	165
Other Utility:
Steam	22	20	22	20	—	—
Other utility	3	3	2	2	1	1
Total Other Utility	25	23	24	22	1	1
Non-Utility and Other:
Travero and other	45	47	—	—	—	—
Total Non-Utility and Other	45	47	—	—	—	—
Total revenues	$1,990	$2,012	$1,037	$1,056	$908	$909