Shareholders' Equity (Tables)

6 Months Ended

Jun. 30, 2019

Shareholders' Equity [Abstract]

Accumulated Other Comprehensive Income (Loss)

	Three months ended				Six months ended
	June 30,				June 30,
	2019		2018		2019		2018
Beginning balance	$	(824)	$	(265)	$	(714)	$	(529)
Other comprehensive income (loss) (2)		39		(413)		(59)		(153)
Equity method affiliates (3)		(1)		(15)		(13)		(11)
Net current-period other comprehensive income (loss)		38		(428)		(72)		(164)
Ending balance	$	(786)	$	(693)	$	(786)	$	(693)

(1)All amounts are after tax. Amounts in parentheses indicate debits to accumulated other comprehensive loss.

(2)For the three and six months ended June 30, 2019 amounts are net of tax benefit of $10 million and $23 million, respectively. For the three and six months ended June 30, 2018, amounts are net of total tax benefit of $40 million and $30 million, respectively.

(3)Tax effects are not significant.