Other comprehensive income information

12 Months Ended

Dec. 31, 2013

Other comprehensive income information

17. Other comprehensive income information

Changes in accumulated other comprehensive income:

millions of dollars	2013			2012			2011
Balance as at January 1		(2,455	)		(2,238	)		(1,424	)
Post-retirement benefits liability adjustment:
Current period change excluding amounts reclassified from accumulated other comprehensive income		529			(415	)		(953	)
Amounts reclassified from accumulated other comprehensive income		205			198			139
Balance as at December 31		(1,721	)		(2,455	)		(2,238	)

Amounts reclassified out of accumulated other comprehensive income – before tax income/(expense)

millions of dollars	2013			2012			2011
Amortization of post-retirement benefits liability adjustment included in net periodic benefit cost (a)		(276	)		(266	)		(186	)

(a) This accumulated other comprehensive income component is included in the computation of net periodic benefit cost (note 4).

Income tax expense/(credit) for components of other comprehensive income

millions of dollars	2013		2012			2011
Post-retirement benefits adjustments:
Post-retirement benefits liability adjustment (excluding amortization)		185		(155	)		(326	)
Amortization of post-retirement benefits liability adjustment included in net periodic benefit cost		71		68			47
Total		256		(87	)		(279	)