Shareholders' Equity (Deficiency) (Shareholders' Equity Activity) (Details) - USD ($) $ in Millions	3 Months Ended						9 Months Ended
	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2022	Sep. 30, 2021
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance, beginning balance	$ 491	$ 426	$ 496	$ 759	$ 821	$ 937	$ 496	$ 937
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	37	12	(74)	(89)	(73)	(110)	(25)	(272)
Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture	4	5	4	1	2
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders	9	11		11	4	2
Other Comprehensive Income (Loss), Net of Tax	(51)	59		(11)	15	(4)
Balance, ending balance	472	491	426	647	759	821	472	647
Noncontrolling Interest, Change in Redemption Value	0			(2)	(2)
Capital in Excess of Par Value
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance, beginning balance	2,913	2,908	2,904	2,899	2,897	2,897	2,904	2,897
Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture	4	5	4	1	2
Balance, ending balance	2,923	2,913	2,908	2,900	2,899	2,897	2,923	2,900
Noncontrolling Interest, Change in Redemption Value	6
Retained Earnings
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance, beginning balance	(2,471)	(2,477)	(2,397)	(2,141)	(2,063)	(1,947)	(2,397)	(1,947)
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest		6	(80)	(95)	(78)	(116)
Balance, ending balance	(2,443)	(2,471)	(2,477)	(2,236)	(2,141)	(2,063)	(2,443)	(2,236)
Accumulated Other Comprehensive Income (Loss)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance, beginning balance	24	(35)	(35)	(32)	(47)	(43)	(35)	(43)
Other Comprehensive Income (Loss), Net of Tax	(51)	59		(11)	15	(4)
Balance, ending balance	(27)	24	(35)	(43)	(32)	(47)	(27)	(43)
Noncontrolling Interests
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance, beginning balance	25	30	24	33	34	30	24	30
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	9	6	6	6	5	6
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders	9	11		11	4	2
Balance, ending balance	19	$ 25	$ 30	26	33	$ 34	$ 19	$ 26
Noncontrolling Interest, Change in Redemption Value	$ (6)			$ (2)	$ (2)