XML 68 R43.htm IDEA: XBRL DOCUMENT v3.24.0.1

Note 16 - Leases (Tables)

12 Months Ended

Dec. 31, 2023

Notes Tables

Lessee, Lease [Table Text Block]

		Dec. 31,			Dec. 31,
Millions	Classification		2023				2022
Assets
Operating leases	Operating lease assets		$	1,643			$	1,672
Finance leases	Properties, net [a]			244				310
Total leased assets			$	1,887			$	1,982
Liabilities
Current
Operating	Accounts payable and other current liabilities		$	355			$	331
Finance	Debt due within one year			49				67
Noncurrent
Operating	Operating lease liabilities			1,245				1,300
Finance	Debt due after one year			109				167
Total lease liabilities			$	1,758			$	1,865

Lease, Cost [Table Text Block]

Millions	Dec 31, 2023			Dec 31, 2022
Operating lease cost [a]		$	369			$	338
Short-term lease cost			24				18
Variable lease cost			41				13
Finance lease cost
Amortization of leased assets [b]			38				52
Interest on lease liabilities [c]			8				12
Net lease cost		$	480			$	433

Contractual Obligation, Fiscal Year Maturity [Table Text Block]

Millions	Operating Leases			Finance Leases				Total
2024		$	361			$	55			$	416
2025			375				42				417
2026			296				35				331
2027			237				30				267
2028			199				11				210
After 2028			300				-				300
Total lease payments		$	1,768			$	173			$	1,941
Less: Interest			168				15				183
Present value of lease liabilities		$	1,600			$	158			$	1,758

Weighted Average Remaining Lease Term and Discount Rate [Table Text Block]

	Dec. 31,
		2023
Weighted-average remaining lease term (years)
Operating leases			5.8
Finance leases			3.5
Weighted-average discount rate (%)
Operating leases			3.6
Finance leases			4.5

Lessee, Lease, Other Information [Table Text Block]

Millions		2023				2022
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows from operating leases		$	323			$	319
Investing cash flows from operating leases			33				31
Operating cash flows from finance leases			9				15
Financing cash flows from finance leases			65				91
Leased assets obtained in exchange for finance lease liabilities			-				-
Leased assets obtained in exchange for operating lease liabilities		$	241			$	173

X

- Definition

Tabular disclosure of contractual obligation by timing of payment due. Includes, but is not limited to, long-term debt obligation, lease obligation, and purchase obligation.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 3
-Subparagraph (S-X 210.12-04)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480678/235-10-S99-3

+ Details

Name:	srt_ContractualObligationFiscalYearMaturityScheduleTableTextBlock
Namespace Prefix:	srt_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of other information for operating and finance leases of lessee.

+ References

No definition available.

+ Details

Name:	unp_LesseeLeaseOtherInformationTableTextBlock
Namespace Prefix:	unp_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of the the lessee's leases.

+ References

No definition available.

+ Details

Name:	unp_LesseeLeaseTableTextBlock
Namespace Prefix:	unp_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of weighted average remaining lease term and discount rate.

+ References

No definition available.

+ Details

Name:	unp_WeightedAverageRemainingLeaseTermAndDiscountRateTableTextBlock
Namespace Prefix:	unp_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of lessee's lease cost. Includes, but is not limited to, interest expense for finance lease, amortization of right-of-use asset for finance lease, operating lease cost, short-term lease cost, variable lease cost and sublease income.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147478964/842-20-50-4

+ Details

Name:	us-gaap_LeaseCostTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_TableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration