XML 55 R35.htm IDEA: XBRL DOCUMENT v3.24.0.1

Investments (Tables)

12 Months Ended

Dec. 31, 2023

Investments [Abstract]

Investments

			December 31,
			2023						2022
			($ in millions)
Long-term investments:
Equity method investments:
Conrail			$	1,656					$	1,584
TTX			964						918
Other			428						421
Total equity method investments			3,048						2,923
COLI at net cash surrender value			774						752
Other investments			17						19
Total long-term investments			$	3,839					$	3,694

X

- Definition

Tabular disclosure of investment.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 320
-Name Accounting Standards Codification
-Publisher FASB
-URI https://asc.fasb.org//320/tableOfContent

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Name Accounting Standards Codification
-Topic 321
-Publisher FASB
-URI https://asc.fasb.org//321/tableOfContent

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Name Accounting Standards Codification
-Topic 325
-Publisher FASB
-URI https://asc.fasb.org//325/tableOfContent

+ Details

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

X

- References

No definition available.

+ Details

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