Accumulated Other Comprehensive Loss

12 Months Ended

Dec. 31, 2021

Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]

Accumulated other comprehensive loss

Accumulated other comprehensive loss

In millions	Foreign currency translation adjustments		Pension and other postretirement benefit plans		Total before tax			Income tax recovery (expense) (1)			Total net of tax
Balance at December 31, 2018	$	(41)	$	(3,881)	$	(3,922)		$	1,073		$	(2,849)
Other comprehensive income (loss) before reclassifications:
Foreign exchange loss on translation of net investment in foreign operations	(636)				(636)			—			(636)
Foreign exchange gain on translation of US dollar-denominated debt designated as a hedge of the net investment in foreign operations	380				380			(52)			328
Actuarial loss arising during the year			(600)		(600)			155			(445)
Amounts reclassified from Accumulated other comprehensive loss:
Amortization of net actuarial loss			152		152		(2)	(39)		(3)	113
Amortization of prior service costs			3		3		(2)	(1)		(3)	2
Settlement loss arising during the year			5		5		(2)	(1)		(3)	4
Other comprehensive income (loss)	(256)		(440)		(696)			62			(634)
Balance at December 31, 2019	(297)		(4,321)		(4,618)			1,135			(3,483)
Other comprehensive income (loss) before reclassifications:
Foreign exchange loss on translation of net investment in foreign operations	(269)				(269)			—			(269)
Foreign exchange gain on translation of US dollar-denominated debt designated as a hedge of the net investment in foreign operations	187				187			(24)			163
Actuarial loss arising during the year			(82)		(82)			22			(60)
Amounts reclassified from Accumulated other comprehensive loss:
Amortization of net actuarial loss			237		237		(2)	(64)		(3)	173
Amortization of prior service costs			3		3		(2)	(1)		(3)	2
Settlement loss arising during the year			2		2		(2)	—		(3)	2
Other comprehensive income (loss)	(82)		160		78			(67)			11
Balance at December 31, 2020	(379)		(4,161)		(4,540)			1,068			(3,472)
Other comprehensive income (loss) before reclassifications:
Foreign exchange loss on translation of net investment in foreign operations	(84)				(84)			—			(84)
Foreign exchange gain on translation of US dollar-denominated debt designated as a hedge of the net investment in foreign operations	32				32			(2)			30
Actuarial gain arising during the year			1,809		1,809			(475)			1,334
Amounts reclassified from Accumulated other comprehensive loss:
Amortization of net actuarial loss			265		265		(2)	(69)		(3)	196
Amortization of prior service costs			(1)		(1)		(2)	—		(3)	(1)
Settlement loss arising during the year			2		2		(2)	—		(3)	2
Other comprehensive income (loss)	(52)		2,075		2,023			(546)			1,477
Balance at December 31, 2021	$	(431)	$	(2,086)	$	(2,517)		$	522		$	(1,995)

(1)The Company releases stranded tax effects from Accumulated other comprehensive loss to Net income upon the liquidation or termination of the related item.

(2)Reclassified to Other components of net periodic benefit income in the Consolidated Statements of Income and included in net periodic benefit cost. See Note 17 - Pensions and other postretirement benefits.

(3)Included in Income tax expense in the Consolidated Statements of Income.