Shareholders' Equity (Tables)

9 Months Ended

Sep. 30, 2019

Shareholders' Equity [Abstract]

Accumulated Other Comprehensive Income (Loss)

	Three months ended				Nine months ended
	September 30,				September 30,
	2019		2018		2019		2018
Beginning balance	$	(786)	$	(693)	$	(714)	$	(529)
Other comprehensive loss (2)		(235)		(128)		(293)		(281)
Equity method affiliates (3)		(3)				(17)		(11)
Net current-period other comprehensive loss		(238)		(128)		(310)		(292)
Ending balance	$	(1,024)	$	(821)	$	(1,024)	$	(821)

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

(2) For the three and nine months ended September 30, 2019, amounts are net of tax benefit of $16 million and $39 million, respectively. For the three months ended September 30, 2018, tax amount is not significant. For the nine months ended September 30, 2018, amount is net of tax benefit of $28 million.

(3) Tax effects are not significant.