Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Increase (Decrease) Accumulated Other Comprehensive Loss, Net of Tax
Balance at beginning of the period	$ (1,972)
Other comprehensive income (loss)	99	$ 295	$ (429)
Balance at end of the period	(1,861)	(1,972)
Net Effect of Exchange Rate Fluctuations
Increase (Decrease) Accumulated Other Comprehensive Loss, Net of Tax
Balance at beginning of the period	(1,290)	(1,229)	(813)
Change before reclassifications	10	(61)	(267)
Other comprehensive income (loss)	10	(61)	(416)
Balance at end of the period	(1,280)	(1,290)	(1,229)
Change in Certain Derivative Instruments
Increase (Decrease) Accumulated Other Comprehensive Loss, Net of Tax
Balance at beginning of the period	(21)	(60)	(14)
Change before reclassifications	60	119	(156)
Amounts reclassified from accumulated other comprehensive loss	(27)	(80)	112
Translation effect	(5)	1	(2)
Tax effect	(3)	(1)	(1)
Other comprehensive income (loss)	25	39	(46)
Balance at end of the period	4	(21)	(60)
Employee Benefit Plans
Increase (Decrease) Accumulated Other Comprehensive Loss, Net of Tax
Balance at beginning of the period	(661)	(983)	(1,016)
Change before reclassifications	(24)	165	(32)
Amounts reclassified from accumulated other comprehensive loss	69	148	68
Translation effect	21	9	(9)
Tax effect	10		2
Other comprehensive income (loss)	76	322	33
Balance at end of the period	(585)	(661)	(983)
Accumulated Other Comprehensive Loss.
Increase (Decrease) Accumulated Other Comprehensive Loss, Net of Tax
Balance at beginning of the period	(1,972)	(2,272)	(1,843)
Change before reclassifications	46	223	(455)
Amounts reclassified from accumulated other comprehensive loss	42	68	180
Translation effect	16	10	(11)
Tax effect	7	(1)	1
Other comprehensive income (loss)	111	300	(429)
Balance at end of the period	$ (1,861)	$ (1,972)	(2,272)
Australia and New Zealand ("ANZ") business | Net Effect of Exchange Rate Fluctuations
Increase (Decrease) Accumulated Other Comprehensive Loss, Net of Tax
Amounts reclassified from accumulated other comprehensive loss			(149)
Australia and New Zealand ("ANZ") business | Change in Certain Derivative Instruments
Increase (Decrease) Accumulated Other Comprehensive Loss, Net of Tax
Amounts reclassified from accumulated other comprehensive loss			1
Australia and New Zealand ("ANZ") business | Employee Benefit Plans
Increase (Decrease) Accumulated Other Comprehensive Loss, Net of Tax
Amounts reclassified from accumulated other comprehensive loss			4
Australia and New Zealand ("ANZ") business | Accumulated Other Comprehensive Loss.
Increase (Decrease) Accumulated Other Comprehensive Loss, Net of Tax
Amounts reclassified from accumulated other comprehensive loss			$ (144)