Debt (Tables)

6 Months Ended

Jun. 30, 2021

Debt Disclosure [Abstract]

Schedule of Debt

Our debt consists of the following:

	At			At
	June 30, 2021			December 31, 2020
2.250% Senior Notes due 2022		$	—		$	35
3.375% Senior Notes due 2022		—			415
3.125% Senior Notes due 2022		—			117
2.50% Senior Notes due 2023		—			196
3.25% Senior Notes due 2023		—			141
2.90% Senior Notes due 2023		—			242
4.25% Senior Notes due 2023		—			837
7.875% Debentures due 2023		139			139
7.125% Senior Notes due 2023		35			35
3.875% Senior Notes due 2024		490			490
3.70% Senior Notes due 2024		599			598
3.50% Senior Notes due 2025		597			596
4.75% Senior Notes due 2025		1,240			1,239
4.0% Senior Notes due 2026		792			791
3.45% Senior Notes due 2026		123			123
2.90% Senior Notes due 2027		692			691
3.375% Senior Notes due 2028		495			495
3.70% Senior Notes due 2028		492			492
4.20% Senior Notes due 2029		494			493
7.875% Senior Debentures due 2030		831			831
4.95% Senior Notes due 2031		1,221			1,220
4.20% Senior Notes due 2032		971			969
5.50% Senior Debentures due 2033		427			427
4.85% Senior Debentures due 2034		87			87
6.875% Senior Debentures due 2036		1,070			1,069
6.75% Senior Debentures due 2037		75			75
5.90% Senior Notes due 2040		298			298
4.50% Senior Debentures due 2042		45			45
4.85% Senior Notes due 2042		488			487
4.375% Senior Debentures due 2043		1,119			1,116
4.875% Senior Debentures due 2043		18			18
5.85% Senior Debentures due 2043		1,232			1,232
5.25% Senior Debentures due 2044		345			345
4.90% Senior Notes due 2044		540			540
4.60% Senior Notes due 2045		589			589
4.95% Senior Notes due 2050		943			942
5.875% Junior Subordinated Debentures due 2057		514			514
6.25% Junior Subordinated Debentures due 2057		643			643
Other bank borrowings		45			95
Obligations under finance leases		31			26
Total debt (a)		17,720			19,733
Less current portion of long-term debt		17			16
Total long-term debt, net of current portion		$	17,703		$	19,717

(a) At June 30, 2021 and December 31, 2020, the senior and junior subordinated debt balances included (i) a net unamortized discount of $476 million and $491 million, respectively, and (ii) unamortized deferred financing costs of $99 million and $107 million, respectively. The face value of our total debt was $18.30 billion and $20.33 billion at June 30, 2021 and December 31, 2020, respectively.