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Pensions and Other Postretirement Benefits (Tables)

9 Months Ended

Sep. 30, 2021

Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]

Net Periodic Benefit Cost

The net periodic pension and other postretirement benefit costs for the three and nine months ended September 30, 2021 and 2020 were as follows:

			Pension
			Three Months Ended September 30												Nine Months Ended September 30
($ in millions)			2021						2020						2021						2020
Service cost			$3						$6						$8						$18
Interest cost			17						22						49						65
Expected return on plan assets			(38)						(36)						(114)						(108)
Amortization of actuarial losses			10						17						30						53
Curtailments			—						—						—						1
Net periodic benefit cost			($8)						$9						($27)						$29

			Other Postretirement Benefits
			Three Months Ended September 30												Nine Months Ended September 30
($ in millions)			2021						2020						2021						2020
Service cost			$3						$2						$9						$7
Interest cost			3						5						10						15
Amortization of actuarial losses			5						4						15						12
Amortization of prior service credit			(14)						(14)						(41)						(44)
Net periodic benefit cost			($3)						($3)						($7)						($10)

Defined Contribution Plan Disclosures

			Three Months Ended September 30												Nine Months Ended September 30
($ in millions)			2021						2020						2021						2020
Non-U.S. defined benefit pension mandatory contributions			$1						$2						$3						$7

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Tabular disclosure of defined contribution pension plans or defined contribution other postretirement plans, separately for pension plans and other postretirement benefit plans.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 70
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=49170846&loc=d3e28014-114942

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X

- Definition

Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (h)
-URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920

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