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Investments (Tables)

12 Months Ended

Dec. 31, 2020

Investments [Abstract]

Investments

			December 31,
			2020						2019
			($ in millions)
Long-term investments:
Equity method investments:
Conrail Inc.			$	1,446					$	1,387
TTX Company			798						749
Other			418						510
Total equity method investments			2,662						2,646
Corporate-owned life insurance at net cash surrender value			902						767
Other investments			26						15
Total long-term investments			$	3,590					$	3,428

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- Definition

Tabular disclosure of investment.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 325
-URI http://asc.fasb.org/topic&trid=2197064

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 321
-URI http://asc.fasb.org/topic&trid=75115024

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-URI http://asc.fasb.org/topic&trid=2196928

Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-URI http://asc.fasb.org/topic&trid=2196965

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No definition available.

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