Revenues (Tables)

6 Months Ended

Jun. 30, 2022

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	2022	2021	2022	2021	2022	2021
Electric Utility:
Retail - residential	$289	$258	$158	$142	$131	$116
Retail - commercial	196	175	127	115	69	60
Retail - industrial	244	210	136	116	108	94
Wholesale	54	47	16	15	38	32
Bulk power and other	29	27	5	14	24	13
Total Electric Utility	812	717	442	402	370	315
Gas Utility:
Retail - residential	51	39	28	24	23	15
Retail - commercial	27	19	14	12	13	7
Retail - industrial	3	3	2	2	1	1
Transportation/other	13	8	8	5	5	3
Total Gas Utility	94	69	52	43	42	26
Other Utility:
Steam	11	9	11	9	—	—
Other utility	2	1	1	1	1	—
Total Other Utility	13	10	12	10	1	—
Non-Utility and Other:
Travero and other	24	21	—	—	—	—
Total Non-Utility and Other	24	21	—	—	—	—
Total revenues	$943	$817	$506	$455	$413	$341

	Alliant Energy		IPL		WPL
Six Months Ended June 30	2022	2021	2022	2021	2022	2021
Electric Utility:
Retail - residential	$581	$520	$308	$281	$273	$239
Retail - commercial	386	347	246	225	140	122
Retail - industrial	453	412	246	228	207	184
Wholesale	101	87	31	26	70	61
Bulk power and other	65	52	12	28	53	24
Total Electric Utility	1,586	1,418	843	788	743	630
Gas Utility:
Retail - residential	210	138	113	76	97	62
Retail - commercial	109	72	54	39	55	33
Retail - industrial	11	8	7	5	4	3
Transportation/other	26	21	17	14	9	7
Total Gas Utility	356	239	191	134	165	105
Other Utility:
Steam	20	18	20	18	—	—
Other utility	3	5	2	4	1	1
Total Other Utility	23	23	22	22	1	1
Non-Utility and Other:
Travero and other	47	38	—	—	—	—
Total Non-Utility and Other	47	38	—	—	—	—
Total revenues	$2,012	$1,718	$1,056	$944	$909	$736

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	2022	2021	2022	2021	2022	2021
Electric Utility:
Retail - residential	$289	$258	$158	$142	$131	$116
Retail - commercial	196	175	127	115	69	60
Retail - industrial	244	210	136	116	108	94
Wholesale	54	47	16	15	38	32
Bulk power and other	29	27	5	14	24	13
Total Electric Utility	812	717	442	402	370	315
Gas Utility:
Retail - residential	51	39	28	24	23	15
Retail - commercial	27	19	14	12	13	7
Retail - industrial	3	3	2	2	1	1
Transportation/other	13	8	8	5	5	3
Total Gas Utility	94	69	52	43	42	26
Other Utility:
Steam	11	9	11	9	—	—
Other utility	2	1	1	1	1	—
Total Other Utility	13	10	12	10	1	—
Non-Utility and Other:
Travero and other	24	21	—	—	—	—
Total Non-Utility and Other	24	21	—	—	—	—
Total revenues	$943	$817	$506	$455	$413	$341

	Alliant Energy		IPL		WPL
Six Months Ended June 30	2022	2021	2022	2021	2022	2021
Electric Utility:
Retail - residential	$581	$520	$308	$281	$273	$239
Retail - commercial	386	347	246	225	140	122
Retail - industrial	453	412	246	228	207	184
Wholesale	101	87	31	26	70	61
Bulk power and other	65	52	12	28	53	24
Total Electric Utility	1,586	1,418	843	788	743	630
Gas Utility:
Retail - residential	210	138	113	76	97	62
Retail - commercial	109	72	54	39	55	33
Retail - industrial	11	8	7	5	4	3
Transportation/other	26	21	17	14	9	7
Total Gas Utility	356	239	191	134	165	105
Other Utility:
Steam	20	18	20	18	—	—
Other utility	3	5	2	4	1	1
Total Other Utility	23	23	22	22	1	1
Non-Utility and Other:
Travero and other	47	38	—	—	—	—
Total Non-Utility and Other	47	38	—	—	—	—
Total revenues	$2,012	$1,718	$1,056	$944	$909	$736

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	2022	2021	2022	2021	2022	2021
Electric Utility:
Retail - residential	$289	$258	$158	$142	$131	$116
Retail - commercial	196	175	127	115	69	60
Retail - industrial	244	210	136	116	108	94
Wholesale	54	47	16	15	38	32
Bulk power and other	29	27	5	14	24	13
Total Electric Utility	812	717	442	402	370	315
Gas Utility:
Retail - residential	51	39	28	24	23	15
Retail - commercial	27	19	14	12	13	7
Retail - industrial	3	3	2	2	1	1
Transportation/other	13	8	8	5	5	3
Total Gas Utility	94	69	52	43	42	26
Other Utility:
Steam	11	9	11	9	—	—
Other utility	2	1	1	1	1	—
Total Other Utility	13	10	12	10	1	—
Non-Utility and Other:
Travero and other	24	21	—	—	—	—
Total Non-Utility and Other	24	21	—	—	—	—
Total revenues	$943	$817	$506	$455	$413	$341

	Alliant Energy		IPL		WPL
Six Months Ended June 30	2022	2021	2022	2021	2022	2021
Electric Utility:
Retail - residential	$581	$520	$308	$281	$273	$239
Retail - commercial	386	347	246	225	140	122
Retail - industrial	453	412	246	228	207	184
Wholesale	101	87	31	26	70	61
Bulk power and other	65	52	12	28	53	24
Total Electric Utility	1,586	1,418	843	788	743	630
Gas Utility:
Retail - residential	210	138	113	76	97	62
Retail - commercial	109	72	54	39	55	33
Retail - industrial	11	8	7	5	4	3
Transportation/other	26	21	17	14	9	7
Total Gas Utility	356	239	191	134	165	105
Other Utility:
Steam	20	18	20	18	—	—
Other utility	3	5	2	4	1	1
Total Other Utility	23	23	22	22	1	1
Non-Utility and Other:
Travero and other	47	38	—	—	—	—
Total Non-Utility and Other	47	38	—	—	—	—
Total revenues	$2,012	$1,718	$1,056	$944	$909	$736