Shareholders' Equity (Tables)

9 Months Ended

Sep. 30, 2013

Stockholders' Equity Note [Abstract]

Summary of shareholders' equity activity

The following tables summarize our shareholders’ equity activity:

Millions of dollars	Total shareholders' equity			Company shareholders' equity			Noncontrolling interest in consolidated subsidiaries
Balance at December 31, 2012	$	15,790		$	15,765		$	25
Shares repurchased	(4,356		)	(4,356		)	—
Stock plans	397			397			—
Payments of dividends to shareholders	(337		)	(337		)	—
Other	(25		)	(22		)	(3		)
Comprehensive income	1,349			1,341			8
Balance at September 30, 2013	$	12,818		$	12,788		$	30

Millions of dollars	Total shareholders' equity			Company shareholders' equity			Noncontrolling interest in consolidated subsidiaries
Balance at December 31, 2011	$	13,216		$	13,198		$	18
Stock plans	265			265			—
Payments of dividends to shareholders	(250		)	(250		)	—
Other	(24		)	(22		)	(2		)
Comprehensive income	1,984			1,977			7
Balance at September 30, 2012	$	15,191		$	15,168		$	23

Schedule of comprehensive income (loss)

Accumulated other comprehensive loss consisted of the following:

Millions of dollars	September 30, 2013			December 31, 2012
Defined benefit and other postretirement liability adjustments	$	(233	)	$	(241	)
Cumulative translation adjustments	(68		)	(69		)
Other	1			1
Total accumulated other comprehensive loss	$	(300	)	$	(309	)