Note 10. Shareholders’ Equity

A reconciliation of Shareholder’s equity is presented below:

(In millions)	Common Stock		Capital Surplus		Treasury Stock		Retained Earnings		Accumulated Other Comprehensive Loss		Total Shareholders’ Equity
Balance at December 30, 2017	$	33	$	1,669	$	(48)	$	5,368	$	(1,375)	$	5,647
Adoption of ASC 606		—		—		—		90		—		90

Balance at December 31, 2017		33		1,669		(48)		5,458		(1,375)		5,737
Net income		—		—		—		976		—		976
Other comprehensive income		—		—		—		—		78		78
Share-based compensation activity		—		150		—		—		—		150
Dividends declared		—		—		—		(15)		—		(15)
Purchases of common stock		—		—		(1,383)		—		—		(1,383)

Balance at September 29, 2018	$	33	$	1,819	$	(1,431)	$	6,419	$	(1,297)	$	5,543

Balance at December 31, 2016	$	34	$	1,599	$	—	$	5,546	$	(1,605)	$	5,574
Net income		—		—		—		413		—		413
Other comprehensive income		—		—		—		—		186		186
Share-based compensation activity		—		112		—		—		—		112
Dividends declared		—		—		—		(16)		—		(16)
Purchases of common stock		—		—		(451)		—		—		(451)

Balance at September 30, 2017	$	34	$	1,711	$	(451)	$	5,943	$	(1,419)	$	5,818

The components of Accumulated other comprehensive loss are presented below:

(In millions)	Pension and Postretirement Benefits Adjustments		Foreign Currency Translation Adjustments		Deferred Gains (Losses) on Hedge Contracts		Accumulated Other Comprehensive Loss

For the nine months ended September 29, 2018

Beginning of period	$	(1,396)	$	11	$	10	$	(1,375)
Other comprehensive income before reclassifications		—		(26)		—		(26)
Reclassified from Accumulated other comprehensive loss		100		6		(2)		104

Other comprehensive income		100		(20)		(2)		78

End of period	$	(1,296)	$	(9)	$	8	$	(1,297)

For the nine months ended September 30, 2017

Beginning of period	$	(1,505)	$	(96)	$	(4)	$	(1,605)
Other comprehensive income before reclassifications		—		98		10		108
Reclassified from Accumulated other comprehensive loss		70		—		8		78

Other comprehensive income		70		98		18		186

End of period	$	(1,435)	$	2	$	14	$	(1,419)

The before and after-tax components of Other comprehensive income are presented below:

	September 29, 2018						September 30, 2017
(In millions)		Pre-Tax Amount		Tax (Expense) Benefit		After-Tax Amount		Pre-Tax Amount		Tax (Expense) Benefit		After-Tax Amount
Three Months Ended

Pension and postretirement benefits adjustments:
Amortization of net actuarial loss*	$	38	$	(9)	$	29	$	34	$	(12)	$	22
Amortization of prior service cost*		2		—		2		2		(1)		1
Business disposition		7		—		7		—		—		—

Pension and postretirement benefits adjustments, net		47		(9)		38		36		(13)		23

Deferred gains (losses) on hedge contracts:
Current deferrals		3		(1)		2		9		(2)		7
Reclassification adjustments		(2)		1		(1)		3		—		3

Deferred gains (losses) on hedge contracts, net		1		—		1		12		(2)		10

Foreign currency translation adjustments:
Foreign currency translation adjustments		1		—		1		31		3		34
Business disposition		6		—		6		—		—		—

Foreign currency translation adjustments, net		7		—		7		31		3		34

Total	$	55	$	(9)	$	46	$	79	$	(12)	$	67

Nine Months Ended

Pension and postretirement benefits adjustments:
Amortization of net actuarial loss*	$	115	$	(27)	$	88	$	102	$	(36)	$	66
Amortization of prior service cost*		6		(1)		5		6		(2)		4
Business disposition		7		—		7		—		—		—

Pension and postretirement benefits adjustments, net		128		(28)		100		108		(38)		70

Deferred gains (losses) on hedge contracts:
Current deferrals		1		(1)		—		14		(4)		10
Reclassification adjustments		(3)		1		(2)		9		(1)		8

Deferred gains (losses) on hedge contracts, net		(2)		—		(2)		23		(5)		18

Foreign currency translation adjustments:
Foreign currency translation adjustments		(25)		(1)		(26)		91		7		98
Business disposition		6		—		6		—		—		—

Foreign currency translation adjustments, net		(19)		(1)		(20)		91		7		98

Total	$	107	$	(29)	$	78	$	222	$	(36)	$	186

*These components of Other comprehensive income are included in the computation of net periodic pension cost. See Note 11 of our 2017 Annual Report on Form 10-K for additional information.